1. Imported morphological analysis chromatography column (built-in) with column temperature control function, temperature control accuracy ± 0.01 ℃, can display, set
Adjust the column temperature to improve the stability of the chromatographic column.
2. A new type of liquid chromatography atomic fluorescence combined instrument chemical reaction system, equipped with a built-in ultraviolet digestion device and a built-in column temperature box
3. Online digestion device: Specially designed UV digestion device, no UV light leakage, protecting the human body from damage. high strength
UV irradiation dissolves and analyzes components to improve instrument detection performance. The UV digestion unit has two types: UV and non UV
This mode is controlled by a specially designed flow path switching valve, making it easy to switch without changing the flow path.
4. Built in high-pressure infusion pump: Two miniature original high-pressure liquid phase pumps are used, with an accuracy (RSD) of<0.02% (1ml/min),
Ensuring the stability of the instrument. The high-pressure infusion pump can be selected for equal or gradient measurement according to the actual sample requirements.
5. Reserve an interface for automatic liquid chromatography injection, which can be upgraded to fully automatic injection, and can be equipped with imported or domestic liquid chromatography automatic injection.
6. It can be connected to any AFS atomic fluorescence spectrophotometer from Haiguang Company and upgraded to LC-AFS liquid chromatography fluorescence analyzer.
7. The liquid chromatography section adopts a highly integrated design, with built-in high-pressure infusion pump, liquid phase injection section, UV digestion, and column temperature
Composition of box and steam generation system.
8. Implement an integrated specialized instrument for elemental morphology analysis, which performs "total amount screening first, followed by morphology analysis", with one machine for dual use,
Save workload. Instrument total analysis and morphological analysis can achieve one click automatic switching without the need for complex pipeline replacement.
9. Integrated working software that can control the atomic fluorescence part and also reverse control the high-pressure infusion pump.
Morphological analysis section
1). Detectable forms of arsenic
Qualitative and quantitative detection: arsenate[As(V)]Arsenate salt[As(III)]Monomethylated arsenic acid[MMA(V)]Dimethyl arsenic acid[DMA(V)]Arsenic betaine(AsB)Arsenic choline(AsC)Organic arsenic preparations in feed(arsanilic acidP-ASAAnd RoxarsoneRoxarsone)
Qualitative and semi quantitative detection: Methyl arsenite acid[MMA(III)]Dimethyl arsenite acid[DMA(III)]Sulfur compounds of dimethyl arsenic acid
Qualitative detection: arsenic sugar(AsS)
2).Detectable forms of selenium
Qualitative and quantitative detection: Selenite salt[Se(IV)]Selenate salt[Se(VI)]Selenocysteine(SeCys)Selenomethylselenocysteine(SeMeCys)And selenomethionine(SeMet) Tetravalent selenium (Se (IV)), hexavalent selenium (Se (VI)),Selenium polysaccharides, selenium peptides, selenium proteins, etc
3).Detectable forms of mercury
Qualitative and quantitative detection: inorganic mercury(Hg(II))Methylmercury(MetHg)Ethyl mercury(EtHg)Benzene mercury(PhHg)
4).Detectable forms of antimony
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 speciation |
minimum detectable quantity ng |
Analysis Timemin |
Precision(RSD) |
linear range |
correlation coefficient |
|
As |
As(III) |
0.04 |
<10 |
<3% |
103 |
>0.999 |
DMA |
0.08 |
|||||
MMA |
0.08 |
|||||
As(V) |
0.2 |
|||||
Se |
SeCys |
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) |
0.5 |
<10 |
|||
Sb(III) |
0.1 |
Temperature: 0 ℃~45 ℃
Humidity: ≤ 90%
Scalable features:
1. Built in integrated dual chromatographic column automatic switching system, realizing rapid switching between two chromatographic columns and improving analysis efficiency
Complete the analysis of inorganic arsenic and two types of methyl arsenic within 2.5 minutes, with a detection limit of less than 0.3ng/mL for trivalent inorganic arsenic and a detection limit of less than 0.3ng/mL for pentavalent inorganic arsenic
Below 0.5ng/mL.