JASCO|Fluorescence Detector
Feature :
Unparalleled Sensitivity
The new axially irradiated cell design enables the very highest sensitivity detection. These changes have resulted in a leap in sensitivity with signal noise ratio of 2300:1 or higher (water Raman peak). The FP-4025 is an excellent routine fluorescence detector that has a water Raman S/N of 1400:1.
Dual Wavelength Measurement
Both detectors can be used for simultaneous detection at two wavelength pairs; excitation and emission wavelengths can be changed during the acquisition using a time program and automatic spectra scanning can be triggered manually, by time or automatically by threshold. A built-in mercury lamp enables automatic wavelength correction and the front-access design allows easy replacement of the flow cell assembly and light source.
Spectral Scanning
Excitation and emission spectra can be scanned using ChromNAV chromatography data system and can be set to operate, manually, at a specified time or using a threshold trigger.
Control
Individual LC-4000 Series instruments are normally used as part of a complete HPLC system, however for applications (such as adding to a third party system or for a non-LC application) that require stand-alone operation, each instrument has its own keypad and can also be controlled using an RS232 command set, and/or contact closures (TTL) to start and stop the pump.
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FP-4020 |
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Light source |
150 W Xenon lamp (for measuring fluorescent intensity) Hg lamp (for checking wavelength accuracy) |
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Wavelength range |
200 to 700 nm |
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Spectral bandwidth |
Excitation side: 20 nm Emission side: 20 or 40 nm (selectable) |
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Sensitivity |
Raman peak of water : S/N > 2300 (under specified conditions) |
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Response |
12 steps in total: 0.01, 0.03, 0.05, 0.1, 0.3, 0.5, 1.0, 1.5, 2.0, 3.0, 5.0, and 10.0 sec. |
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Flow cell temperature control |
Available |
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Dual wavelength detection |
Simultaneous fluorescent intensity detection at different two pairs of excitation and emission wavelengths (Difference between each pair of excitation and emission wavelengths must be 200 nm or less) |
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Spectrum measurement |
Excitation spectrum and emission spectrum measurement (spectrum storage: 10 excitation spectra and 10 emission spectra), spectrum output, and differential spectrum output |
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Dimensions, weight |
300 (W) × 470 (D) × 225 (H) mm, approx. 24 kg |
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Required power |
AC 100 to 240 V, 50/60 Hz, maximum 270 VA |