The technology of the present application is directed to methods and kits for detecting and quantifying a non-polar analyte in a plant-derived sample. The technology uses a simple extraction, e.g., a liquid-liquid extraction (LLE) or solid-phase extraction (SPE), to enrich a sample for a non-polar analyte of interest and to remove contaminants. After the extraction and clean-up steps, liquid chromatography and mass spectrometry are used to detect the non-polar analyte. In one embodiment, acequinocyl and/or its derivatives is analyzed using liquid chromatography and tandem mass spectrometry (LC-MS/MS) and the improved LC-MS/MS conditions allows detection limits of acequinocyl and/or its derivatives of 50 ppb or less.

Provided are methods for identifying OP-adducted biomarkers of OP exposure as well as compounds containing OPs that can provide OP adducts and compounds of Formula 1 for eliciting antibodies that specifically and selectively bind to the OP adducts, wherein the Formula 1 compounds have the structure of OP-Peptide-Linker-CP, wherein CP is a carrier protein, OP represents a structure corresponding to that of a reactive organic phosphorous compound covalently modifying a tyrosine residue hydroxyl group of the peptide of Formula I and the other variable groups are as described herein.

This invention provides polypeptides that were identified as interacting with Vip3 toxin. This invention also provides a method of identifying agents that bind to Vip3 interacting polypeptides, which agents may act as insecticidal agent, cytotoxic agents and/or modulate the activity of Vip3 interacting polypeptides.

The present disclosure provides organophosphorous (OP) compounds of Formula (I), Formula (II) and Formula (III):
OP-Peptide-Linker-CP(I),
OP-Peptide-Linker(II); and ##STR00001## wherein OP is ##STR00002##
including that structure corresponding to a reactive organophosphorous reagent, nerve agent or pesticide, or a pesticide PS to PO metabolite; P is the S.sub.p or R.sub.p stereoisomer; X is oxygen, sulfur, selenium or imino; R and R are as described; Peptide is a sequence of amino acids containing a serine, threonine or tyrosine to which the OP is attached, wherein the total number of amino acids is between 7 and 41; Linker is an amino acid or is derived from another bifunctional reagent capable of covalently attaching an OP-peptide to a CP; and CP is a carrier protein used to display haptens for antibody generation. The disclosure also provides methods for generating monoclonal or polyclonal antibodies specific for an OP-Peptide of a compound of Formula (I) or Formula (II) that can be used to diagnose the presence, identity, and quantity of OP adducts.

Disclosed is a hybridoma cell strain that secretes anti-dinitolmide monoclonal antibodies applicable to the field of food safety immunoassay methods. The hybridoma cell strain DAS3H10 that secretes anti-dinitolmide monoclonal antibodies has been deposited in Comprehensive Microbiology Center of China Microbial Culture Collection Management Committee (CGMCC), addressed in No. 1 Hospital No. 3 Institute of Microbiology of the Chinese Academy of Sciences, North Chenxi Road, Beijing Chaoyang District in Beijing. It is classified as a monoclonal cell strain. The deposit date is Nov. 28, 2019, and the deposit number is MCCC No. 19165. The monoclonal antibody secreted by the hybridoma cell strain DAS3H10 has a good affinity and high sensitivity to dinitolmide. Because of IC.sub.50 to dinitolmide up to 9.01 ng/mL, the monoclonal antibody could be used to prepare dinitolmide immunoassay kits and colloidal gold test strips, and can further provide a powerful means for detecting dinitolmide in animal-derived foods.

The present invention relates to a screening method for determining whether or not a candidate compound is a modulator of an insect transient receptor potential V (TRPV) channel. The present invention further provides a method of insect control by applying to an insect-specific TRPV channel modulator determined by the screening method. The present invention further relates to an expression vector that includes a nucleic acid molecule coding for an insect TRPV channel. Also, the present invention relates to cell that includes the expression vector encoding a TRPV channel.