Thiamethoxam Colloid Gold Quick Detection Card Instruction Manual

Product No.: YB084C01K

Summary

Thiamethoxam is a high-efficiency and low-toxicity insecticide, which belongs to the second generation of nicotinic high-efficiency and low-toxicity insecticides. The chemical formula is C8H10CIN5O3S, which has gastric toxicity, contact and internal absorption activity to pests. It is used for foliar spray and soil irrigation. It has good anti-effect on piercing pests such as aphids, planthoppers, leafhoppers, whiteflies, etc.

Detection principle

This product adopts the principle of competitive inhibition immunochromatography. The binding of thiamethoxam in the sample to the specific antibody labeled with colloidal gold inhibits the binding of the antibody to the antigen on the NC membrane detection line (T line), resulting in the change of the color depth of the T line; according to the color development depth judgment results of the T line and the C line.

Use

used for the initial screening detection of thiamethoxam content in fresh vegetables, fruits and other samples.

The minimum detection limit of the sample

0 mg/kg (ppm)

Cross-reactivity and product performance

The results of adding 10ppm of thiamethoxam, imidacloprid, furomefam and thiamethacloprid were negative;

The results of adding 0.3ppm of thiamethoxam and 0.1ppm of enamethacloprid were positive.

kit composition

need to bring their own tools

serial number

specification
composition

10 times/box

2 0 times/box

serial number

tool name

(1)

test card (1T/bag)

10 card

20 card

(1)

balance (precision 0.01g)

(7)

timer

(2)

pesticide residue extract (100mL/bottle)

1 bottle

2 bottle

(2)

scissors

(3)

disposable straw

10

20

(3)

tweezers 1mL)

(6)

Instructions

1

1

(6)

Vortex instrument

Precautions

(1) Tools such as knives, scissors and stickers should be cleaned to avoid cross-contamination.

(2) Sample requirements: avoid spoilage and deterioration of the sample; avoid large pieces of soil (can be thrown off or erased with other clean items).

(3) Before testing, it is recommended that the sample be fully stirred and mixed (if the sample is less, the representative part should be taken, and then the sample should be weighed), so that the test results can more realistically reflect the actual drug residue of the sample.

(4) The detection environment temperature should be controlled at 17~ 30 ° C. If the temperature is too high or too low, it will affect the test results.

(5) Please follow the detection steps for testing. Do not touch the color-developing area of the test strip during operation, and avoid direct sunlight and electric fan blowing.

(6) The sample solution to be tested needs to be clarified, otherwise it will easily lead to abnormal phenomena such as inconspicuous color development, which will affect the judgment of

(7) Products that have expired or damaged aluminum foil bags cannot be used. Please use the test card immediately after unpacking.

(8) Please use it as soon as possible after the sample is processed. If the time is too long, you need to reprocess the sample for re-testing.

(9) When positive results appear, re-testing is recommended. The test results of this product are for reference only. If you need confirmation, please refer to the relevant national standards and methods.

(10) When adding standard verification, the standard solution solvent generally chooses methanol, and the final sample is recommended to add a scalar amount of 10-50 μL.

(11) When directly testing the standard, use the solvent kit supporting the extract, and the amount of organic solvent is controlled within 1%. Tap water, distilled water, purified water or deionized water cannot be used as a negative control.

Safety instructions

(1) The experiment should match the corresponding experimental equipment and wear the necessary experimental equipment (white clothes, gloves, masks, etc.).

(2) The test kit should be properly stored and placed in a place that is not easy for children to contact.

(3) Keep the laboratory clean and tidy after the experiment and the air circulation of the experimental environment.

(4) This product is a one-time product, and it should be properly disposed of after the test. The experimental waste is collected separately. It is recommended to dispose of it according to the medical waste.

(5) The reagents involved in this product are safe and reliable, and do not contain carcinogenic, highly toxic, flammable, explosive, and highly corrosive reagents, but should not be eaten.

storage conditions and valid period

(1) Original packaging: Store dry at 2-30 ° C away from light, do not freeze, valid period 12 months.

(2) After unpacking: Use the test card immediately after unpacking, do not freeze.