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Module Type:
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Your choices are...
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Energy Dispersive
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A non-destructive analysis technique for the identification and quantification of elements in a material. Energy dispersive spectroscopy is the measurement x-ray energies emitted from the bombardment of an energy source impinged upon the material, producing characteristic x-rays.
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Wavelength Dispersive
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A non-destructive analysis technique for the identification and quantification of elements in a material. Wavelength dispersive spectroscopy is the measurement x-ray energies emitted from the bombardment of an energy source impinged upon the material, producing characteristic x-rays.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Measurement Mode:
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Your choices are...
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Simultaneous
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Typically measures the entire wavelength range around the emission line of interest simultaneously.
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Sequential
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Typically measure one wavelength at time.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Detector Type:
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The part of the instrument that converts radiant energy from the light source to electricity. Typically a photomultiplier tube, but may also be a solid-state detector in more modern instrumentation.
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Your choices are...
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SiLi
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Gas Ionization
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Scintillation
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Other
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Other unlisted or unspecified detector types.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Optical System:
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Your choices are...
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Monochromator
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A monochromator is a spectrometer optical system capable of measuring a single wavelength which can be scanned through a wide wavelength range. A common form of monochromator is the Czerny-Turner design, consisting of fixed entrance and exit slits, fixed focusing mirrors and a rotatable diffraction grating. As the grating rotates a different wavelength is focused onto the exit slit. The wavelength range of a monochromator varies with the choice of grating, but commonly they can scan from 160 nm to 500 nm or ever wider ranges. The spectral resolution depends on the widths of the slits, the choice of grating and focal length, but commonly can be less than 10 pm for high resolution OES.
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Crystal
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The optical system is composed of crystals used to diffract and separate wavelengths of the light.
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Other
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Other unlisted optical system.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Excitation Source:
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Almost any solid element can be used as the source element. In choosing the element to be used for the target, it should be remembered that it is necessary for the energy of the x-rays emitted by the source to be greater than that required to excite the element being irradiated. As a simple rule of thumb, the target element of the source should have a greater atomic number than the elements being examined in the sample. This ensures that the energy of radiation from the source is more than sufficient to cause the sample element to fluoresce.
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Your choices are...
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X-Ray Tubes
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A lamp or source that produces X-Rays.
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Electron Beam
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A stream of electrons that is geometrically confined and accelerated by electrostatic interactions.
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Other
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Other unlisted excitation source.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Analyzer Type
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Your choices are...
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Single Channel
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The analyzer operates on a single channel.
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Multichannel
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The analyzer can operate on multiple channels.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Spectral / Wavelength Range:
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The dispersion of the grating across the linear array; also expressed as the "size" of the spectra on the array.
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Search Logic:
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Accuracy:
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The agreement between a mean measured value and a true or accepted value as quantified by error. Related to determinate errors and quantified by bias.
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Search Logic:
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All matching products will have a value less than or equal to the specified value.
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Resolution:
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The width of an analytical peak at half its height expressed in nanometers. A measure of the instruments ability to separate two overlapping peaks. At the point of resolution, two peaks of equal height are said to be resolved if you can see a dip between the tops of the two peaks.
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Search Logic:
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All matching products will have a value less than or equal to the specified value.
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Response Time:
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The amount of time required from introduction of the sample into the spectrometer until the analysis is complete.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Detection Limit:
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The smallest amount of a substance that can be measured. Usually defined as a signal that is at least three times the standard deviation of the background signal. The measurement of any signal is not perfect; there is always a certain amount of noise in the signal. Three standard deviations are a measure in terms of a range, which, in a large number of measurements, would include 99 % of all the measurements. So when it is stated that in order to be a detectable amount it must be a signal which measures higher than 3 standard deviations it means that that signal is higher than 99 % of the noise in the background.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Scan Speed:
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The rate at which the analyzer scans the spectral range. The slower the speed, the higher the resolution.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Number of Compounds Measured:
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The maximum number of compounds that can be measured by the spectrometer.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Sample Type:
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Your choices are...
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Solids
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The spectrometer can accept solid samples to analyze.
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Liquids
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The spectrometer can accept liquid samples to analyze.
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Gases
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The spectrometer can accept gaseous samples to analyze.
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Semi-solids
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The spectrometer can accept semi-solid samples to analyze.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Detector Window
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Your choices are...
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Be Window
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Cannot detect elements lighter than Beryllium.
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Windowless
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Can detect elements lighter than Beryllium, but the detector can be damaged.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Background Correction?
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A technique usually employed relative to the determination of trace metals to compensate for stray light emission and various spectral interferences which would bias analytical results.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Microscope?
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For imaging purposes.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Cooled Detector?
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The detector is temperature cooled to prevent overheating.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Total Vacuum Option?
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This gives the analyzer greater sensitivity.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Chemical Mapping or Imaging?
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Line scan/area scan. The spectrometer will perform surface mapping or imaging of the sample.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Thickness Testing?
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The spectrometer can be used in thickness testing applications.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Density Testing?
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The spectrometer can be used in density testing applications.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Local Interface:
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Your choices are...
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Analog Front Panel
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The panel has analog user inputs such as potentiometers, dials, switches, for adjustment of output, ranges, etc.
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Digital Front Panel
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The panel uses digital keypads or menus for programming.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Computer Interface?
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Can be controlled or monitored remotely with a computer via interface.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Computer Interface Options:
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Your choices are...
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Serial Interface
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A port, or interface, that can be used for serial communication, in which only one bit is transferred at a time. Examples include RS232, RS422, RS485, USB, etc.
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Parallel Interface
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A channel capable of transferring more than one bit at a simultaneously. Examples include PC Printer Port, Centronics®, etc.
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Other Computer Interface
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Modem, transmitter, TTL, etc.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Application Software Included?
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For control or for monitoring the process.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Display Options:
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Your choices are...
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Analog Meter
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Data is displayed with an analog meter or simple visual indicator.
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Digital Readout
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Device uses numerical or application specific display.
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Video Display
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The data is presented in video form via CRT, LCD, or other multi-line forms.
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None
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No integral display. Output is read and displayed remotely.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Additional Output Options:
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Your choices are...
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Outputs an Analog Voltage
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Any analog voltage output. Output voltage is a simple (usually linear) function of the measurement.
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Output is a Pulse
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Frequency or modulated frequency output (Ex. sine wave, pulse train, AM, FM).
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Outputs an Analog Current
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4-20mA, or any other analog current output. Often called a transmitter. A current is imposed on the output circuit proportional to the measurement. Feedback is used to provide the appropriate current regardless of line noise, impedance, etc. Useful when sending signals long distances.
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Output is a Switch or Relay Contact
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The ''output'' is a change in state of a switch or an alarm.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Programmable?
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The fluorometer is able to be programmed to run special routines.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Self-calibration?
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Self-calibration is used to remove errors which remain after performing the regular calibration process.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Data Storage / Data Logger?
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Is it necessary for the device to be able to record and store data within its own memory, without transferring it to a separate data recorder?
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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On-line Monitoring & Process Control?
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The spectrometer is part of a system and is responsible for monitoring the process and changing it if necessary.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Data Processing Functions?
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The spectrometer has the ability to process the data and perform analysis of it.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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Operating Temperature:
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This is the full required range of ambient operating temperature.
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Search Logic:
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Operating Humidity:
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This is the full required range of ambient operating humidity.
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Search Logic:
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User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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xrf,
x ray fluorescence,
fluorescence spectrophotometer,
shimadzu spectrophotometer,
x treme tape,
spectrophotometer varian,
u.v. spectrophotometer,
uses spectrophotometer,
varian spectrophotometer,
medical xray,
double-beam spectrophotometer,
minolta spectrophotometer,
reflectance spectrophotometer,
spectrophotometer experiment,
spectrophotometer xrite,
energy dispersive spectroscopy,
spectrophotometer fluorescence,
spectrophotometer schematic,
spectrophotometer shimadzu,
spectrophotometer reading
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