TH10814A3 - Dichlorvos in Fruits and Vegetables, Standard Color Matching Screening Test Kit - Google Patents

Abstract

This invention standard color-coded dichlorvos test kit for fruits and vegetables contains 3 types of test reagents: ethanol, nitrobenzyl, pyridine and tetra. Tylene Pentamine Standard color band for determination of dichlorvos concentrations at various concentrations, an essential test instrument. Guide to use of the test kit with pictures, instructions for using the test kit, a standard color stripe calibration procedure for determining the dichlorvos concentration in the sample. With precautions for use Standard color bar with different color intensity according to the Dichlorvos that can be detected or tested And personal protective equipment can be used to test dichlorvos at 0 to 20 milligrams per liter. Can know the results Can be examined in a period of 25-30 minutes per sample It can be used to test 30 to 35 samples. This test sample can be tested effectively. By keeping it at room temperature within 1 month from the date of manufacture -------------------------------------------------- ------------- This invention standard color-coded dichlorvos test kit for fruits and vegetables contains 3 substances: ethanol, Nitrobenzyl, Pyridine and Tetraethylene Pentamine Standard color bar for determining the concentration of dichlorvos at various concentrations, an essential equipment used for testing. Manual of test kit with pictures, procedure for using the test kit, the procedure for calibrating the long-range color bars to determine the dichlorvos concentration in the sample. With precautions for use A standard color bar with different color intensity according to the Dichlorvos that can be detected or tested And personal protective equipment can be used to test dichlorvos at 0 to 20 milligrams per liter. Can know the results Can be examined in a period of 25-30 minutes per sample It can be used to test 50 to 35 samples. This test sample can be tested effectively. By keeping it at room temperature within 1 month from the date of manufacture

Claims (2)

1.Standard fruit and vegetable dichlorvos test kit. Containing - ethanol solution at 90-95 percent concentration - nitrobenzyl pyridine solution in 8-15 percent ethanol concentration by volume - tetraethylene pen Tamine Concentration 85-95% vol by volume - Standard color palette with different chroma and RGB values depending on the concentration of the substance. 1 set of dichlorvos for fruits and vegetables - 100ml plastic sample vials - 25 ml plastic syringes - 3ml plastic syringes - 15ml plastic tubes - plastic syringes 1 ml - 25 ml transparent glass sample collection vials - 10 ml clear glass sample vials with stopper and screw cap - 120 ml plastic vials for test residue - device Protection for personal protection It consists of 1 pair of gloves and 1 piece of nose mask. 2. The use of the dichlorvos test kit in fruits and vegetables with standard color-coded screening according to claim 1 where there is a procedure for using the kit. Test as follows: a) Take a sample of fruit or vegetable to be cut into small pieces of approximately 5-8 grams and put in a 100ml plastic glass for extraction. B) Use a 25 mL plastic syringe. The concentration of 90-95% to 20-25 ml was added to the sample of vegetables or fruits to extract By soaking for 5-10 minutes, then pour the solution into a clear glass vial for collecting 25 ml of sample extracted solution -5 ml, put in a 15 ml plastic tube, add a solution of nitrobenzyl pyridine in 8-15% ethanol, 0.30-0.60 ml by volume, close the lid tightly and shake for 20-. 30 sec. After that, it is boiled in boiling water for 20-30 minutes, then cut to cool at room temperature. D) Pour the solution obtained from item c) into a 10 ml sample vial. Add 0.5-0.8 ml of tetraethylene pentamine using a 1 mL plastic syringe, close the cap tightly and shake for 20-30 seconds e) calibrate the color of the solution obtained by Open the lid of the glass jar. Place a standard colored strip on a flat surface and look at the color of the solution on top of the test vial. Compare the color of the solution Can be in a test vial With the standard color swatch from the test kit By selecting the standard color bar that has the same intensity Color of the solution in the test bottle To read the concentration of dichlorvos in milligrams per liter, f) pour the test solution into a plastic vial for the remaining reagent from the test. Used equipment, rinse with clean water. Keep in the packaging box for the next test. -------------------------------------------------- ------------- 1.Standard fruit and vegetable dichlorvos test kit. Containing - ethanol solution at 90-95 percent concentration - nitrobenzyl pyridine solution in 8-15 percent ethanol concentration by volume - tetraethylene pen Tamine Concentration 85-95% vol by volume - Standard color palette with different chroma and RGB values depending on the concentration of the substance. 1 set of dichlorvos for fruits and vegetables - 100ml plastic sample vials - 25 ml plastic syringes - 3ml plastic syringes - 15ml plastic tubes - plastic syringes 1 ml - 25 ml transparent glass sample collection vials - 10 ml clear glass sample vials with stopper and screw cap - 120 ml plastic vials for test residue - device Protection for personal protection Consists of 1 pair of gloves and 1 piece of nose mask 2. The use of the dichlorvos test kit in fruit and vegetables with a color-coded standardized screening in claim 1, where the procedure for using the test kit is as follows: a) Take a sample of the vegetable or fruit. The wood to be tested is cut into small pieces of approximately 5-8 grams and placed in a plastic glass for extraction of 100 ml samples. Milliliters put in a sample of fruits or vegetables for extraction By soaking for 5-10 minutes, then pour the solution into a clear glass vial for collecting 25 ml sample extract c) Using a 3 ml plastic syringe, draw the solution from item b) 3 -5 ml, put in a 15 ml plastic tube, add a solution of nitrobenzyl pyridine in 8-15% ethanol, 0.30-0.60 ml by volume, close the cap tightly and shake for 20- 30 sec. After that, it is boiled in boiling water for 20-30 minutes and then cut to cool at room temperature. D) Pour the solution obtained from item c) into a 10 ml sample vial. Add 0.5-0.8 ml of tetraethylene pentamine using 1 ml plastic syringe, close the cap tightly and shake for 20-30 seconds e) calibrate the color of the solution obtained by Open the lid of the glass jar. Place a standard colored strip on a flat surface and look at the color of the solution on top of the test vial. Compare the color of the solution Can be in a test vial With the standard color swatch from the test kit By selecting the standard color bar that has the same intensity The color of the solution in the test bottle To read the concentration of dichlorvos in milligrams per liter, f) pour the test solution into a plastic bottle for the remaining reagents from the test. Used equipment, rinse with clean water. Keep in the packaging box for the next test.