On July 21, 2015, Thermo Fisher Scientific, the world leader in scientific services, recently announced the simultaneous determination of six carbamate pesticide residues in feeds using gas chromatograph GC-NPD. solution.
Carbamate pesticides are widely used in crop protection. Since the 1970s, due to the ban or restriction of organochlorine pesticides and the increasing number of insecticides resistant to organophosphorus pesticides, carbamate pesticides have become Following the organic chlorine and organic phosphorus, the third-generation insecticides are growing and growing, and because of their strong potency and easy decomposition and no residual toxicity, they are widely used to poison agricultural pests.
Because carbamate pesticides are used unscientificly, contaminating feed, and thus affecting live animals, causing human and animal poisoning to occur, many countries and regions have imposed strict limits on the residues of such pesticides in food. Standards, China's current national standard clearly stipulates that several kinds of carbamate limit is 0.02-0.04 mg / kg.
The method adopts the analysis method of carbamate in the analysis feed used by the national standard, and selects Thermo Scientific to establish an effective method for detecting the carbamate in the feed. In the national standard, petroleum ether-dichloromethane was used for extraction. The method was found to be better by acetone-n-hexane. At the same time, the national standard is filled with anhydrous sodium sulfate, Florisil silica glass column for purification, the method is purified by Florisl solid phase extraction column, the purification effect is better, the recovery rate is higher, and it is more beneficial for NPD detection. The life of the bead is extended. The method is accurate, high in sensitivity, and meets the detection requirements.
Product Link: Thermo Scientific Gas Chromatograph
http://?CateId=369&ProductsId=769
Solution Steps: Thermo Scientific Test of Pesticide Residues by Thermo Scientific
http://?newsCateID=15&CateID=15&NewsID=525
About Thermo Fisher Scientific
Ruisheng Technology continuously researches and absorbs excellent resources, and is committed to providing users with high-end analytical instruments with excellent performance, and combining the characteristics of the industry to make perfect application solutions, turning simple product sales into overall solution sales, helping customers not only It is a complete solution to the problem of providing products, but quality, production, etc. Users do not need to spend more time to research similar competitive products, no need to worry about consumables and supporting procurement, no need to worry about the follow-up inspection results, these will be one-stop service in Ruisheng It has been solved; from initial consultation to follow-up use, professionals are followed up to reduce user purchase costs and create more value for users. Under the guidance of this business philosophy, Ruisheng has successively launched the "RoHS and Reach Laboratory Total Solution", "Lithium Ion Battery Testing Total Solution", "Toy and Baby Products Hazardous Substance Testing Program", "Food Industry Testing Application" Program, "Hazardous Substance Testing Program for Medical Devices Industry", "Precious Metal Element Testing Program", etc.
Thermo Fisher Scientific (NYSE: TMO) is the world leader in scientific services. The company has annual sales of $17 billion and employs approximately 50,000 people in 50 countries. Our mission is to help our customers make the world healthier, cleaner and safer. Our products and services help customers accelerate research in the life sciences, solve complex problems and challenges in the field of analytics, promote medical diagnostics, and increase laboratory productivity. With the premier brands Thermo Scientific, Applied Biosystems, Invitrogen, Fisher Scientific and Unity Lab Services, we combine innovative technology, convenient procurement solutions and total solution for laboratory operations management to create value for our customers, shareholders and employees.
Ruisheng Technology Co., Ltd. is the general agent of Shenzhen Thermo Fisher, providing advanced testing technology and equipment for the Guangdong testing organization.
Ruisheng Technology represents a full range of instruments such as chromatography, spectroscopy, mass spectrometry and life sciences. The main products are: XRF tester, RoHS tester, RoHS analyzer, RoHS tester, x-ray fluorescence spectrometer, direct reading spectrometer, X-ray. Diffractometer, UV-Vis spectrometer, gas chromatograph, liquid chromatograph, gas chromatography-mass spectrometer, ion chromatograph, potentiometric titration, electrochemical workstation, scanning electron microscope, etc., widely used in electronic appliances, plastic chemicals, medicine, food , environmental protection, quarantine, steel, non-ferrous and other industries, and provide energy-saving environmental testing, biomedical testing, hazardous substances analysis, material composition and surface analysis, providing the most advanced testing equipment and complete laboratory construction, consumables, training, leasing Stationary solution.
2500 Puffs Vpae,Mini Disposable E-Cigarette,Rechargeable Disposable Vape,Thick Oil Atomizer Vaporizer Pen
Guangzhou Yunge Tianhong Electronic Technology Co., Ltd , https://www.e-cigarettesfactory.com