Introduction of QuEChERS
Characteristics of QuEChERS
QuEChERS is a pretreatment method for pesticide residue detection. This paper refers to the products produced by our company. Its name comes from the acronyms of the words “Quick, Easy, Cheap, Effective, Rugged, Safe”, which are also the characteristics of the processing methods. The pretreatment method of agricultural residue belongs to the upgraded version of SPE, which has similar purification effect with SPE. However, the process is more concise, time-saving, efficient and economical, which is gradually accepted by the majority of analysts.
Use of QuEChERS
(1) Weighing 10g homogeneous sample into the centrifugal tube.
(2) Add acetonitrile and other extractive solutions, shake violently for 1 minute so that the sample can be fully dissolved in acetonitrile solution.
(3) Adding QuEChERS extraction salt to improve extraction efficiency.
(4) After extraction, the supernatant was separated from the mixture of the sample and acetonitrile.
(5) The mixed solution is added to the purification tube, and the purified solution can be obtained by adsorbing the impurities with the adsorbent in the purification tube.
(6) Take supernatant for instrument analysis to judge whether it meets the standard or not.
Contact : Bruce Lu, +86 29 89284429
Good deal: buying from seller
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
|
This page is about importers and exporters of Introduction of QuEChERS Search in a category : Everything else / Bulk Search in a category : quechers, introduction |
Wednesday, August 06, 2014
Vertical Shaft Impact crusher (VSI Sand Making Machine) uses a unique rock on rock crushing method employing a high speed rotor with crushing chamber of the equipment. Velocity is applied in Vertical Shaft Impact crushers as the resulting force, to break stone particles. While applying...
Henan Liming Heavy Industry Science & Technology Co.
- 75001 - paris
- 08 63 72 12 34
Thursday, May 30, 2013
Quantity : 1000000 to - Price : 10€
Material "Enola" - a unique and unparalleled experience in the world; Building material made of expanded polystyrene, cement and special additives, the expertise of our company. Representatives of several foreign countries are increasingly interested in this technology and we are...
Agent commercilae
- basarabia
- 93000 - Bobigny
- +33 6 21 86 25 35
Friday, August 21, 2015
Air Purifier RM-AC300 Certification: ISO9001 2 year warranty Key Specification 1.Color: Various color can be chosed 2.Input Voltage: 110~240V 3.Rated Power: 50-60HZ 4.Power(W) : 36~55W 5.Noise Level: 25~55dB 6.Display Mode: LED 7.Control Mode: Touch screen 8.CADR: 320m³/H 9...
Rooman Electrical Appliances Co., Ltd.
- Rooman1
- 523929 - Dongguan
- +13 6 62 88 32 70



