方案摘要
方案下载| 应用领域 | 农/林/牧/渔 |
| 检测样本 | 其他 |
| 检测项目 | |
| 参考标准 | / |
关键词：Allethrin-isomers，Pyrethoid，Pesticide，HPLC，RHPLC，CD Chiral，Insecticide，Allethrin，
The widespread use of pesticides can adversely affec thuman health and the environment . Allethrin is a synthetic pesticide belonging to the pyrethroid family. Allethrin causes paralysis and death of insects by targeting their nervous system . Mosquitoes , flies, cockroaches , and ants are all effectively controlled by it. Several formulations of allethrin are available for domestic use , such as sprays , coils , and heated mats. Allethrin's chemical structure is like that of pyrethrins found in chrysanthemums . However , allethrin is much more stable and has a longer residual effect than natural pyrethrins . The long-term stability of allethrin makes it a more effective insecticide but relatively more persistent in the environment.
Synthetic pyrethroids are among the most challenging chromatographic separations because of their large number of isomers. Therefore, a C18 column, a shape-selective achiral column, and a derivatized cyclodextrin column were employed to analyze the isomeric ratios. JASCO’s PDA detection, followed by circular dichroism detection, allows researchers to conveniently investigate isomeric ratios of allethrin using 1D HPLC systems, all in reversed-phase using ACN/Water mobile phases.
HPLC 中的采样频率、响应时间和柱外效应
基于抗体的药物强制降解研究中聚集物和降解产物的SEC监测
用CD光谱法评估VHH抗体的高阶结构、稳定性和相似性
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