2003AContinuous flow hydride generation dual channel atomic fluorescence spectrometer

1、 Basic functions of the instrument

1Light source: using high-performance specially coded hollow cathode lamp

2Optical path: Adopting a short focal length non-uniform optical path system

3Duty cycle: Adopting adjustable duty cycle, automatically selecting the best duty cycle to achieve the best excitation effect

4Background subtraction: Using the small background subtraction function, it can automatically deduct background interference caused by impurities, astigmatism, and flames

5Automatic sampler: a static noise 3D track automatic sampler with flexible configuration of optional sample positions

6Instrument upgrade: configurationHG-AFSUsers of the spectrometer can choose to upgrade toHG-FLAME-AFSSpectrometer, expanding the range of detected elements (increasing)Au、Ag、Cu、Co、Cr、NiElement detection function)

7Reserved interface: Reserved for use with instruments such as chromatography and morphology analyzers.

8Workstation: A complete operating system in both Chinese and English, implementing various curve methods and testing methods, recommending the best instrument testing conditions, and expert assistance functions. The functions include graphical display and playback of test data, data statistics and queries, various graphics, data, page saving, and printing.

2、 Instrument features:

1Hydride generation system

The single pump dual channel continuous flow injection method for hydride generation avoids errors caused by memory effects in samples with different contents at the same testing time. It adopts a patented designAThe multifunctional reaction module device integrates hydrogenation reaction, bubble elimination, gas-liquid separation, and automatic waste liquid removal functions.

2Gas transmission system

Using a short-range direct gas transmission system, the measured element hydrides, hydrogen gas, and carrier gas generated by the hydrogenation reaction are efficiently transmitted to the atomizer

3Atomization system

Adopting a double-layer quartz shielded atomizer, the three-dimensional adjustment mechanism makes it more convenient, fast, and accurate to adjust the position of the atomizer, achieving the best excitation effect and fluorescence signal reception effect.

4Circuit system

Adopting modular design of large-scale integrated circuits, cathodic lamp dual channel coding selection protection, overvoltage, overcurrent, and open circuit protection.

5exterior design

Adopting internationally popular3UThe chassis design is simple in overall structure, easy to operate, and has good electromagnetic compatibility.

3、 Instrument function:

1Single channel, single channel enhancement, dual channel measurement function

2Function of establishing standard curves at two or more points

3Single point standard calibration curve function

4Automatic online dilution function for high concentration samples

5Automatically implement single and continuous measurement functions

6Sample blank deduction optional function

7Built in automatic control of argon gas and automatic protection function for cutting off gas flow

4、 Technical indicators: