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Instrument Type:

Detection Method:

Dynamic Range:

#

Detector Wavelength:

Response Time:

Flow-Cell Volume:

Flow Rate:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Maximum Pressure Rating:

Local Interface:

Computer Interface Options:

Application Software Included?

Display Options:

Additional Output Options:

Programmable?

Built in Chromatograph?

Self-Calibration?

Extreme Environment?

Self-Test Diagnostics?

Data Storage Options?

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with HPLC Detectors specifications:

Instrument Type
   Instrument Type       
   Your choices are...         
   Portable Instrument       Has handles/case/wheels etc. to make easy to move, not necessarily held in hand to use. 
   Fixtured or Permanent       Mounted or fixtured in place for long-running use. 
   Search Logic:      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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Detection Method
   Detection Method       
   Your choices are...         
   Ultraviolet/Visible Light Detector       UV detectors are the most commonly used detector. They measure the ability of a sample to absorb light. This can be accomplished at one or several wavelengths. A variable wavelength UV detector, capable of monitoring from 190 to 460-600 nm will be found suitable for the detection of the majority of samples. 
   Refractive Index Detector       The detection principle involves measuring of the change in refractive index of the column effluent passing through the flow-cell. The greater the RI difference between sample and mobile phase, the larger the imbalance will become. 
   Fluorescence Detector       Very sensitive, but very selective. It is possible to detect even a presence of a single analyte molecule in the flow-cell. Fluorescence occurs when compounds having specific functional groups are excited by shorter wavelength energy and emit higher wavelength radiation. 
   Radiochemical Detector       Radiochemical detection involves the use of radio-labeled material, usually Tritium or Carbon-14. It operates by detection of fluorescence associated with beta-particle ionization, and it is most popular in metabolite research. 
   Electrochemical Detector       Very sensitive, but very selective. It is based on the measurements of the current resulting from an oxidation/reduction reaction of the analyte at a suitable electrode. The level of the current is directly proportional to the analyte concentration. 
   Light Scattering Detector       Evaporative light scattering detectors involve nebulization of the column effluent to an aerosol, followed by solvent vaporization to produce small solute droplets, and then these droplets are detected in the light scattering cell. 
   Mass Spectroscopy Detector       The sample compound is ionized, it is passed through a mass analyzer, and the ion current is detected. 
   Nuclear Magnetic Resonance Detector       Certain nuclei with odd numbered masses spin about an axis in a random fashion. However, when placed between poles of a strong magnet, the spins are aligned either parallel or anti-parallel to the magnetic field. The nuclei are then irradiated with electromagnetic radiation that is absorbed and then the parallel nuclei are placed into a higher energy state; consequently, they are now in "resonance" with the radiation. Each atom will produce a different spectra depending on their location and adjacent molecules, or elements in the compound. 
   Other       Other unlisted or proprietary detector type. 
   Search Logic:      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 Specs
   Dynamic Range:       This is the range where the peak area is directly proportional to the solute amount (e.g., doubling the solute amount results in a doubling of peak area). This allows for the quantification of unknown samples using a multi-point calibration curve. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
   Detector Wavelength:       The emission wavelength. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Response Time:       The amount of time it takes from when the solutes enter the detector until a chromatogram is generated. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
   Flow-Cell Volume:       The heart of an efficient HPLC detector is the cell. The optics provide focusing of the light beam in the center of the cell where it is virtually unaffected by the entry-exit-window-interface disturbance, or drift induced by flow, temperature, or refractive index changes. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
   Flow Rate:       The rate that the solute flows through the detector. 
   Search Logic:      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.
   Maximum Pressure Rating:       The maximum pressure range that the detector can operate within. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
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User Interface Options
   Local Interface:       
   Your choices are...         
   Analog Front Panel       The panel has analog user inputs such as potentiometers, dials, switches, for adjustment of output, ranges, etc. 
   Digital Front Panel       The panel uses digital keypads or menus for programming. 
   Search Logic:      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.
   Computer Interface Options:       
   Your choices are...         
   Serial Interface       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. 
   Parallel Interface       A channel capable of transferring more than one bit at a simultaneously. Examples include PC printer port, Centronics. 
   Other Computer Interface       Modem, transmitter, TTL, etc. 
   Search Logic:      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.
   Application Software Included?       For control or for monitoring chromatographic process. 
   Search Logic:      "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
   Display Options:       
   Your choices are...         
   Analog Meter       Data is displayed with an analog meter or simple visual indicator. 
   Digital Readout       Device uses numerical or application specific display. 
   Video Display       The data is presented in video form via CRT, LCD, or other multi-line forms. 
   None       No integral display. Output is read and displayed remotely. 
   Search Logic:      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
   Additional Output Options:       
   Your choices are...         
   Analog Voltage       Any analog voltage output. Output voltage is a simple (usually linear) function of the measurement. 
   Frequency / Modulated Frequency Pulse       Frequency or modulated frequency output (Ex. sine wave, pulse train, AM, FM). 
   Analog Current       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. 
   Switch or Relay Contact       The ''output'' is a change in state of a switch or an alarm. 
   Search Logic:      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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General Features and Functionality
   Programmable?       Detector has programming features. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Built in Chromatograph?       Detector has a built in recorder for chromatograph outputs. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Self-Calibration?       The detector is capable of calibrating itself. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Extreme Environment?       The detector is configured to operate in extreme environments, temperature, humidity, dust, etc. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Self-Test Diagnostics?       The detector can perform self-test diagnostics to assess any errors. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Data Storage Options?       Detector has data storage options. 
   Search Logic:      "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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Environment
   Operating Temperature:       This is the full required range of ambient operating temperature. 
   Search Logic:      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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