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LC-AFS6500 Liquid phase fluorescence spectrometer

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Instrument Introduction:

LC-AFS6500 series liquid Chromatography-Atomic fluorescence spectrometer adopts highly integrated design and integrated software control. The special designed digestion device can significantly improve digestion efficiency, powerful function, high automation, high sensitivity and reliability. The product has passed the product technical appraisal organized by China Instrument Industry Association, and obtained independent innovation silver in 2015. Awards.

Applications:

Food hygiene test, environmental sample test, water sample test, geological and mineral sample test, agricultural test, clinical test, education and scientific research.


Host features:
1. Automatically switching patents for morphological analysis and aggregate analysis.
2. The patented high sensitive detection mode meets the lower detection requirements of inorganic arsenic and methylmercury.
3. It is suitable for speciation and valence analysis of arsenic, mercury, selenium and antimony.
4. Integrative design of morphological unit: it integrates infusion pump, separation unit, on-line ultraviolet digestion, column temperature control, injection valve, steam generation and gas-liquid separation system.
5. Gradient analysis and equivalence analysis functions are selected, which fully meet the detection requirements of inorganic arsenic and organic mercury items in food national standard GB5009.
6. Shorten the balance and cleaning time of chromatographic column, effectively prolong the life of chromatographic column.
7. Dual lamp position or four lamp position design can preheat multiple element lamp at the same time to save working time.
8. Integrative control of the special workstation, effectively achieve the control and detection of all functional modules.
9. A highly efficient and environmentally friendly on-line digestion device is specially designed to rapidly realize on-line switching between ultraviolet and non-ultraviolet modes.
10. It has the function of multielement morphometry.
11. It can be equipped with various types of liquid-phase automatic samplers to realize unattended function.
12. The optimized pipeline design shortens the analysis time, and the pentavalent arsenic (equivalent) analysis time is less than 7 minutes.
13. Optional automatic switching function for arsenic and mercury chromatographic columns

Morphological analysis performance characteristics:
1. It is suitable for speciation and valence analysis of arsenic (As), mercury (Hg), selenium (Se), antimony (Sb).
2. Integrative design of morphological unit, which integrates separation unit, column temperature control, ultraviolet digestion and steam generation.
3. Optional single/double liquid pumps can be used to measure equivalence and gradient.
4. Double lamp position or four lamp position can preheat multi-element lamp at the same time, which obviously improves work efficiency.
5. The micro-inlet high-pressure liquid pump with column temperature control and display is used to improve the separation effect of samples.
6. High-efficiency ultraviolet digestion unit, pipeline optimization, reducing post-column broadening, digestion efficiency increased by 30%.
7. It has two modes of ultraviolet and non-ultraviolet. It can be easily switched by special flow path switching valve.
8. Dual steam generation system (patent) is used for total analysis and morphological analysis.
9. Automatic switching of total analysis and morphological analysis (patents);
10. The measurement speed is fast, and the single measurement time is less than 10 minutes.
11. Specialized morphological analysis software, integrated control, ensure the consistency of peak time, improve the stability of measurement;
12. Expanding the interface of liquid chromatography automatic sampler;

Total analysis performance characteristics:
1. It is suitable for trace analysis of twelve elements such as arsenic, mercury, selenium, lead, germanium, tin, antimony, bismuth, cadmium, tellurium, zinc and gold in samples.
2. Based on BCEIA Golden Award product technology, two-channel and two-element automatic measurement, the single measurement time is less than 40 seconds;
3. Integrative design of main engine and injection pump sequential injection steam generation system, special corrosion-resistant imported injection pump;
4. Equipped with low noise, 183-bit polar coordinate injector with cleaning position (patent) or X, Y, Z three-dimensional 130-bit slide-rail automatic injector;
5. Special sample/current-carrying isolation technology to eliminate the influence of diffusion effect on measurement results;
6. Compatible with injection pump mode and peristaltic pump mode to meet the needs of users in different industries.
7. Unique injection pump and peristaltic pump combined steam generation technology (LC-AFS6500 - patent), sample and current alternately introduced to achieve online cleaning.
Eliminate cross-contamination, save sample and reagent consumption, mechanical power to remove waste liquor;
8. Initiate the application technology of pinch valve (LC-AFS6500), replace the traditional one-way valve and multi-way valve, reagent does not touch the valve body, no corrosion, no memory.
Recalling, high reliability, life up to 500,000 times;
9. Using 10-roller and 6-channel large peristaltic pump, the injection is stable and the pulsation effect is effectively reduced.


Atomic fluorescence part
(1) Detection limits (D.L.): As, Pb, Se, Bi, Sn, Sb, Te, <0.01 g/L
Hg, Cd<0.001 g/L, Ge<0.05 g/L, Zn<1.0 g/L, Au<3.0 g/L
(2) Precision < 0.7%
(3) Linear range: greater than three orders of magnitude.

Morphological analysis part
1. Detectable forms of arsenic
Qualitative and quantitative detection: arsenate [As (V)], arsenite [As (III)], monomethylarsenic [MMA (V)], dimethylarsenic [DMA (V)], arsenic betaine (AsB), arsenocholine (AsC), organic arsenic preparations in feed (P-ASA and roxarsone)
Qualitative and semi-quantitative detection: monomethylarsenite [MMA(III)], dimethylarsenite [DMA(III)], thio-substitutes of dimethylarsenic acid
Qualitative detection: arsenose (AsS)
2. Detectable forms of selenium
Qualitative and quantitative detection: selenite [Se (IV)], selenate [Se (VI)], selenocystine (SeCys), Selenomethyl selenocysteine (SeMeCys) and selenomethionine (SeMet) tetravalent selenium (Se (IV), hexavalent selenium (Se (VI), selenopolysaccharide, selenium polypeptide, selenoprotein, etc.
3. Detectable forms of mercury
Qualitative and quantitative detection: inorganic mercury (Hg (II), methyl mercury (MetHg), ethyl mercury (EtHg), phenylorganic mercury (PhHg)
4. Detectable antimony forms
Qualitative and quantitative detection: antimonate [Sb(V)], trivalent antimony [Sb(III)], inorganic antimony (Sb), pentavalent antimony (Sb(V), methyl antimony, etc.


Morphological technical indicators:

Elemental

species

minimum

detection

ng

Analysis

time

min

Precision

RSD

Linear

range

Linear

correlation

coefficient

As

As(III)

0.04

< 10

< 4.5%

 103  

> 0.999

DMA

0.08

MMA

0.08

As(V)

0.2

Se

(SeCys)2

0.3

< 10

SeMeCys

1

Se(IV)

0.1

SeMet

2

Hg

Hg(II)

0.05

<12

MeHg

0.05

EtHg

0.05

PhHg

0.1

Sb

Sb(V)

0.1

< 10

Sb(III)

0.5

Morphological technical indicators:
Temperature: 15 ~35.
Humidity: <85%
Power: <1000W
Applicable power supply: 220V (AC) 50Hz
Operating power supply: 220V + 10% 50Hz

Patent technology:



A New Double Chemical Reaction System ZL201420280553.2 for Liquid Chromatography-Atomic Fluorescence Spectrometry



Analysis Function Switching Device ZL201420280550.9 for High Performance Liquid Chromatography-Atomic Fluorescence Spectrometer
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