Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

56 results about "Cyenopyrafen" patented technology

Cyenopyrafen is a member of the class of pyrazoles that is ethene in which the hydrogens at position 1 have been replaced by p-tert-butylphenyl and cyano groups, while the hydrogens at position 2 have been replaced by pivaloyloxy and 1,3,4-trimethylpyrazol-5-yl groups (the E isomer). A proacaricide (by hydrolysis of the pivalate ester linkage ...

Measurement method for cyenopyrafen residue amount

The invention discloses a measurement method for cyenopyrafen residue amount. The measurement method comprises the following steps: homogeneously extracting residual cyenopyrafen in a sample by using acetonitrile or 1 percent acetic acid-acetonitrile so as to obtain extracted liquid, performing LC-MS/MS (liquid chromatography-mass spectrometry/mass spectrometry) detection after the extracted liquid is dispersed and purified by a bonded phase (C18) of ethylenediamine-N-propyl silane (PSA) and an octadecylsilane and graphitized carbon (Carb) substrate; establishing a corrected standard curve by adopting a blank matrix solution dilution standard, and fixing the quantity by adopting an external standard method. According to the method, the average recovery rate is 87.6 to 94.5 percent, the average relative standard deviation (RSD) is 3.7 to 6.4 percent, the detection limit is lower than 0.42mu g/kg; the measurement method has the advantages of convenience and rapidness in operation, high sensitivity, and high repeatability, and the qualitative and quantitative accuracy is high. The technical requirements on corresponding product safety detection in countries, such as Korea, Japan, and the European Union, can be met; the powerful technical support is provided for guaranteeing the food security of Chinese people and the sustainable development on foreign export trade.
Owner:崔淑华

GC-EI-MS (Gas Chromatography-Electron Ionization-Mass Spectrum) detecting method for residual quantity of cyenopyrafen in fruits and vegetables

The invention discloses a GC-EI-MS (Gas Chromatography-Electron Ionization-Mass Spectrum) detecting method for the residual quantity of cyenopyrafen in fruits and vegetables. The GC-EI-MS detecting method comprises the steps of homogenizing by using acetonitrile or an acetonitrile liquid containing 1% acetic acid to extract residual cyenopyrafen in a sample; dispersing by using a primary secondary amine (PSA) and octadecylsilane bonded-phase (C18) matrix to purify an extracting liquid; then, carrying out GC-EI-MS detection; establishing a corrected standard curve by using a blank matrix liquid without a pesticide to be detected; and quantifying by using an external standard method. By using the GC-EI-MS detecting method, the average recovery rate is 87.2-92.6%, the average relative standard deviation (RSD) is 4.0-6.5%, and the detection limit is lower than 1.33mu g/kg; and the GC-EI-MS detecting method is simple and convenient to operate, rapid, high in sensitivity, good in repeatability and accurate in qualitation and quantitation. According to the GC-EI-MS detecting method, the technical requirements of Korea, Japan, European union and other countries on security detection of corresponding products can be met, and the powerful technical support can be provided for ensuring Chinese food safety and the health development of foreign export trade.
Owner:INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU

GC-NCI-MS determination method for cyenopyrafen residual quantity

The invention discloses a GC-NCI-MS determination method for the cyenopyrafen residual quantity. The method is mainly used for determining the content of cyenopyrafen residues in complex matrix food-grade agricultural products such as grains and animal-origin foods. Acetonitrile or acetonitrile solution containing 1% of acetonitrile is used for extracting the cyenopyrafen residues in a sample in a homogeneous mode, a C18/PSA solid-phase extraction column performs purification and concentration, GC-NCI-MS detection is performed, a corrected standard curve is established by the adoption of blank matrix solution not containing pesticides to be determined, and an external standard method is adopted for quantification. According to the method, the average recovery rate is 85.8-91.4%, the average RSD is 4.0-7.0%, the detection limit is lower than 0.44 microgram/kg, and the method has the advantages of being easy and convenient to implement, rapid, good in impurity removal effect, high in sensitivity and characteristic feature, good in repeatability and accurate in quality determination and quantification. The method can meet the requirement of the residue limited quantity of 0.01 mg/kg for corresponding food safety inspection in Japan, EU, Korea and other nations and namely the technical requirement of the uniform standard and will provide forceful technical supports for guaranteeing food safety of Chinese and health development of export trades.
Owner:INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU

GC-NCI-MS (Gas Chromatography-Negative Chemical Ionization-Mass Spectrum) detecting method for residual quantity of cyenopyrafen in fruits and vegetables

The invention discloses a GC-NCI-MS (Gas Chromatography-Negative Chemical Ionization-Mass Spectrum) detecting method for the residual quantity of cyenopyrafen in fruits and vegetables. The GC-NCI-MS detecting method comprises the steps of homogenizing by using acetonitrile or an acetonitrile liquid containing 1% acetic acid to extract residual cyenopyrafen in a sample; dispersing by using a primary secondary amine (PSA) and octadecylsilane bonded-phase (C18) matrix to purify an extracting liquid; then, carrying out GC-NCI-MS detection; establishing a corrected standard curve by using a blank matrix liquid without a pesticide to be detected; and quantifying by using an external standard method. By using the GC-NCI-MS detecting method, the average recovery rate is 86.3-94.3%, the average relative standard deviation (RSD) is 4.6-8.6%, and the detection limit is lower than 1.12mu g/kg; and the GC-NCI-MS detecting method is simple and convenient to operate, rapid, high in sensitivity, good in repeatability and accurate in qualitation and quantitation. According to the GC-NCI-MS detecting method, the technical requirements of Korea, Japan, European union and other countries on security detection of corresponding products can be met, and the powerful technical support can be provided for ensuring Chinese food safety and the health development of foreign export trade.
Owner:INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU

GC-EI-MS measurement method for cyenopyrafen residual amount

The invention discloses a GC-EI-MS (gas chromatograph-electron ionization-mass spectrometry) measurement method for a cyenopyrafen residual amount. The method is mainly used for measuring the content of cyenopyrafen retained in complicated matrix food agricultural products such as grains and animal derived food. The method comprises the steps of extracting the cyenopyrafen retained in a sample by homogenizing acetonitrile or an acetonitrile solution with 1 percent of acetic acid, performing purification and concentration by a C18/PSA solid-phase extraction column, performing GC-EI-ES detection, building a corrected standard curve for a blank matrix solution without pesticide to be detected, and carrying out quantification by an external standard method. According to the method, the average recycling rate is 81.9-89.0 percent, the average relative standard deviation (RSD) is 4.7-6.5 percent, and the detection limit is lower than 0.73 [mu]g/kg; the method has the advantages of simplicity and convenience in operation, quickness, good impurity removal effect, high sensitivity, high repetitiveness and accuracy in qualification and quantification. The technical requirement of 'uniform limit' on the 0.01 mg/kg residue limit of corresponding food safety detection of the countries such as Japan, European Union and Korea can be met.
Owner:INSPECTION & QUARANTINE TECH CENT SHANDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU

Pesticide composition containing cyenopyrafen and application thereof in prevention and treatment of harmful mites

The invention discloses a pesticide composition containing cyenopyrafen and application thereof in prevention and treatment of harmful mites. Effective components are a first active ingredient cyenopyrafen and a second active ingredient fenpyroximate, wherein the weight ratio of the first active ingredient to the second active ingredient is (40-1):(1-40), and the sum of contents of the first active ingredient and the second active ingredient is 2-40% of the total weight of the pesticide composition. The pesticide composition disclosed by the invention can be prepared into agriculturally allowable emulsion in water, a suspending agent, water dispersible granules and a microcapsule suspending agent. The pesticide composition containing cyenopyrafen is reasonable in composition and has a good effect on panonychus ulmi, hawthorn spider mites, two-spotted spider mites, tetrangychus cinnabarinus and yellow tea mites; meanwhile, the pesticide cost is low, the durable effect is long, the residual quantity of a preparation is low, no pollution is produced to crops, the safety is good, production of resistance can be effectively delayed compared with existing single dosage, and the safety requirements of a pesticide preparation can be met.
Owner:SHAANXI BIAOZHENG CROP SCIENCE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products