4 results about "Chlormequat" patented technology

The invention discloses a method for determining a quaternary ammonium salt pesticide in blood by using liquid chromatography-mass spectrometry, which comprises the following steps of: drawing a whole blood (plasma and serum) matrix labeling standard working curve through liquid chromatography-mass spectrometry analysis; obtaining peak areas of quantitative ion peaks of target objects containing paraquat, aquacide, diguat, chlormequat and mepiperidine with different concentrations and peak areas of quantitative ion peaks of internal standard substances, and further drawing a standard working curve; and performing liquid chromatography-mass spectrometry analysis on the whole blood sample under the same condition to obtain the peak area of a target substance quantitative ion peak and the peak area of an internal standard substance quantitative ion peak in the whole blood test solution, and calculating the content of each quaternary ammonium salt pesticide according to the standard working curve. The method can be used for simultaneously detecting the content of five quaternary ammonium salt pesticides in the whole blood of the poisoned patient simply, conveniently and quickly, and has the characteristics of simplicity, accuracy, good repeatability and high sensitivity.

The application discloses a method for determining quaternary ammonium salt pesticides in blood by using liquid chromatography mass spectrometry, which draws a standard working curve of whole blood (plasma, serum) matrix by liquid chromatography mass spectrometry analysis, obtains peak areas of target quantitative ion peaks and peak areas of internal standard quantitative ion peaks of different concentrations of paraquat, diquat, wild wheat, chlormequat, and mepiquat, and then draws a standard working curve; and under the same conditions, liquid chromatography mass spectrometry analysis is carried out on whole blood sample liquid, peak areas of target quantitative ion peaks and peak areas of internal standard quantitative ion peaks in the whole blood sample liquid are obtained at the same time, and the content of each quaternary ammonium salt pesticide is calculated according to the standard working curve. The application can simply, quickly and simultaneously detect the content of five kinds of quaternary ammonium salt pesticides in whole blood of poisoned patients, and has the characteristics of simplicity, accuracy, good repeatability and high sensitivity.

This invention discloses a method for promoting the maturity of maize replanted after wheat in the Yanqi reclamation area, specifically including the following steps: Step 1, variety selection; Step 2, seedling preparation and management; Step 3, land preparation; Step 4, transplanting operation; Step 5, field management. This invention relates to the field of maize cultivation technology after wheat. This method of maize cultivation by transplanting seedlings after wheat, through the selection of early-maturing varieties with a full growth period, combined with pre-harvest seedling raising before wheat harvest, perfectly addresses the problem of insufficient effective accumulated temperature after wheat, ensuring normal maturity of maize within a limited growth cycle and avoiding yield reduction or crop failure due to insufficient accumulated temperature. By treating the substrate with chlormequat chloride, precisely controlling the temperature and humidity of the seedling shed, and hardening off seedlings before transplanting, it effectively suppresses tall, weak seedlings, reduces pests and diseases, and cultivates strong seedlings. During transplanting, the soil around the roots is compacted, and water is sprayed to retain moisture before loading. Combined with the suitable seedling age of 2 to 5 leaves and 1 heart, the survival rate of transplanted maize is significantly improved, and the rate of empty stalks is reduced.

The invention relates to the technical field of application of plant growth regulators to regulation of cotton growth, in particular to application of a plant growth regulator containing chlormequat chloride and uniconazole to regulation of cotton growth, 1000 parts by weight of the plant growth regulator comprises the following components in parts by weight: 70-490 parts of chlormequat chloride, 10-70 parts of uniconazole, 50-250 parts of auxiliaries and the balance of water, wherein the weight ratio of chlormequat chloride to uniconazole is 7: 1. The plant growth regulator disclosed by the invention can effectively control vigorous growth, increase thickness, inhibit height and shrink sections, so that early peach setting, more flowers, more peaches and less shedding are realized, and effective substances for vegetative growth are transferred to reproductive growth, so that the purposes of high yield and quality improvement of cotton are achieved, and the plant growth regulator is safe to cotton, safe to the environment and small in residue.