Rapid test kit for benzoyl peroxide banned additive in flour
A technology of benzoyl peroxide and detection kit, which is applied in the direction of chemical reaction of materials for analysis, and material analysis by observing the influence on chemical indicators, can solve the complex operation steps, high sensitivity and high cost. and other problems, to achieve the effect of accurate measurement results, sensitive color reaction, and simplified operation process.
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Embodiment 1
[0015] Embodiment 1: kit preparation
[0016] 1. Preparation of reaction reagent: Accurately weigh 0.140 g ferrous ammonium sulfate hexahydrate ((NH 4 ) 2 Fe(SO 4 ) 2 ×6H 2 O) in a 100 ml volumetric flask, add water to dissolve, then add 2 ml of 10 mol / L hydrochloric acid solution, and dilute to the mark with water, which is the reaction reagent; pack the reaction reagent in a dark or opaque container, and use Squeeze the container by hand to squeeze out the reaction reagent drop by drop;
[0017] 2. Prepare the color developer: accurately weigh 6.074 g of potassium thiocyanate (KSCN) in a 100 ml volumetric flask, add water to dissolve, and then dilute with water to the mark, which is the color developer; pack the color developer in a container, The container can be but not limited to a dark or opaque container, and the color developer can be squeezed out drop by drop by squeezing the container by hand;
[0018] 3. Prepare the positive control reagent stock solution: acc...
Embodiment 2
[0020] Embodiment 2: kit preparation
[0021] 1. Preparation of reaction reagents: Accurately weigh 0.356 g of ferrous chloride tetrahydrate (FeCl 2 ×4H 2 O) In a 1000 ml volumetric flask, add water to dissolve, then add 20 ml of 10 mol / L hydrochloric acid solution, and dilute to the mark with water, which is the reaction reagent; pack the reaction reagent in a dark or opaque container, and use Squeeze the container by hand to squeeze out the reaction reagent drop by drop;
[0022] 2. Preparation of developer: accurately weigh 3.806 ammonium thiocyanate (NH 4 SCN) in a 100 ml volumetric flask, add water to dissolve, and then dilute with water to the mark, which is the color developer; pack the color developer in a container, which can be but not limited to a dark or opaque container. The squeeze container can squeeze out the color developer drop by drop;
[0023] 3. Prepare the positive control reagent stock solution: accurately weigh 0.125 g of benzoyl peroxide into a 250...
Embodiment 3
[0025] Embodiment 3: kit preparation
[0026] 1. Preparation of reaction reagents: Accurately weigh 0.149 g of ferrous sulfate heptahydrate (Fe(SO 4 ) 2 ×7H 2 O) In a 100 ml volumetric flask, add water to dissolve, then add 2 ml of 10 mol / L sulfuric acid solution, and dilute to the mark with water, which is the reaction reagent; pack the reaction reagent in a dark or opaque container, and use Squeeze the container by hand to squeeze out the reaction reagent drop by drop;
[0027] 2. Preparation of color developer: Accurately weigh 6.080 g of sodium thiocyanate (NaSCN) in a 100 ml volumetric flask, add water to dissolve, and then dilute with water to the mark, which is the color developer; pack the color developer in a container, The container can be but not limited to a dark or opaque container, and the color developer can be squeezed out drop by drop by squeezing the container by hand;
[0028] 3. Prepare positive control reagent stock solution: accurately weigh 0.15 g of b...
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