Rapid quantitative testing kits for Chromium
Determination of heavy metal chromium in rice, corn, beans, wheat and other food crops and feeds
Product introduction
Chromium is an essential trace element in human body. It contains 6-7 mg in normal human body, which is very important to human body. But excessive intake of chromium can cause poisoning. It can cause extensive pathological changes of kidney, liver, nervous system and blood, skin and respiratory system damage, and even death.
1. Kit description
This product is a rapid detection kit for heavy metal chromium, which is used to quantitatively detect the content of heavy metal chromium in rice, corn, beans, wheat and other food crops. The national limit of heavy metal cadmium is 1mg / kg (PPM).
2. Principle of kit
The sample was crushed, weighed, extracted with extractant, centrifuged and added with sample diluent to chelate heavy metal ions in the supernatant. Add the sample liquid to the sample pad, chromatography along the direction of the kit to the absorbent paper, the heavy metal ion chelate binds with the colloidal gold labeled monoclonal antibody on the colloidal gold binding pad, the unbound colloidal gold labeled monoclonal antibody specifically binds with the whole antigen corresponding to the heavy metal on the detection line t and is partially intercepted, showing a red band. When the gold labeled monoclonal antibody flows through the quality control line C, part of it reacts with Goat anti mouse IgG on the quality control line C and is intercepted, showing a red band. The color of the detection line t is determined by the instrument, and compared with the standard curve preset in the instrument, so as to accurately determine the content of metal ions.
3. Detection range
Quantitative determination of chromium in rice, corn, beans, wheat and other food crops.
Quantitative detection range: 0-5ppm
4. Technical parameters
Reaction temperature: 37 ℃
Precision (CV): within run < 15%, between run < 20%
5. Kit composition
Test card 20 copies / box
Extractant A 1 bottle / box
Extractant B 1 bottle / box
Reagent C 1 bottle / box
Sample diluent 1 bottle / box
6. Preservation conditions of the kit
The test card should be kept at room temperature, not frozen.
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