当前位置: X-MOL 学术Environ. Toxicol. Pharmacol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Optimised method for determination hypoglycine A in maple plant material by multidimensional gas chromatography/mass spectrometry.
Environmental Toxicology and Pharmacology ( IF 4.2 ) Pub Date : 2020-02-21 , DOI: 10.1016/j.etap.2020.103354
Petr Doležal 1 , Jana Doležalová 1 , Tereza Morávková 1 , Roman Stupka 1
Affiliation  

In 2018, more than 50 cases of horse death by equine atypical myopathy (AM) were reported in the Czech Republic. This disease is often associated with the toxin hypoglycine A (HGA), which is found in several maple plant materials. To monitor this toxin in products of these trees that grow in or around horse pastures, a rapid and inexpensive analytical method that can provide the required accuracy is needed.

Until now, maple samples have been prepared for gas chromatography using time-consuming methods, with preparation processes taking longer than 1 h. In this work, a shorter method (25 min) with an accuracy of 90–94 %, reproducibility of 2–5%, precision of 3–9%, and linearity, with an R2 of 0.999, is presented. This sample preparation consists of a procedure without an SPE extraction step and consumes a lower volume of solvent during the extraction. The limit of quantitation for HGA in plant material was improved from 0.5 μg/g of plant material in previous studies to 0.2 μg/g. The method was validated according to the guideline CD 2002/657/EC and ISO 17025, and was found to have good performance characteristics.

This simple and rapid method was tested for the monitoring of hypoglycine A level in maple sycamore plant material (seeds, seedlings, and leaves) during the entire growth of the trees.



中文翻译:

多维气相色谱/质谱法测定枫树植物材料中次甘氨酸A的优化方法。

2018年,捷克共和国报告了超过50例马非典型马病(AM)导致的马死亡案例。这种疾病通常与几种枫树植物材料中的毒素次甘氨酸A(HGA)有关。为了监测在马牧场内或周围生长的这些树木的产品中的这种毒素,需要一种能够提供所需准确性的快速且廉价的分析方法。

到目前为止,已经使用费时的方法制备了用于气相色谱的枫木样品,制备过程耗时超过1小时。在这项工作中,提出了一种较短的方法(25分钟),其准确度为90–94%,重现性为2–5%,精度为3–9%和线性,R 2为0.999。该样品制备过程不包括SPE萃取步骤,并且在萃取过程中消耗的溶剂量较少。植物材料中HGA的定量限从先前研究中的0.5μg/ g植物材料提高到0.2μg/ g。该方法已根据准则CD 2002/657 / EC和ISO 17025进行了验证,并被发现具有良好的性能特征。

测试了此简单而快速的方法,以监测树木整个生长过程中枫树无花果植物材料(种子,幼苗和叶子)中的次要甘氨酸A水平。

更新日期:2020-02-21
down
wechat
bug