Modified QuEChERS method for 24 plant growth regulators in grapes using LC-MS/MS
نویسندگان
چکیده
منابع مشابه
Analysis of 136 pesticides in avocado using a modified QuEChERS method with LC-MS/MS and GC-MS/MS.
A simple and high-throughput screening method for the analysis of 136 pesticides in avocado ( Persea americana ) by LC-(+)-ESI-MS/MS and GC-MS/MS is presented. A modified QuEChERS sample preparation method was developed to improve the extraction recovery of highly lipophilic pesticides. Extracts from minced avocados after acetonitrile (MeCN) extraction were directly injected to LC-MS/MS, wherea...
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This application note describes a method for the simultaneous detection of 21 plant growth regulators in fruits by QuEChERS combined with an HPLC-ESI-MS/MS technique based on our previous work [1]. The samples were initially extracted with acetonitrile containing 1 % acetic acid, followed by cleanup using C18 sorbent in the presence of magnesium sulfate. The resultant solution was separated on ...
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Plant growth regulators are hormone-like chemicals that occur naturally in plants, and play a central role in their growth and development. Five major classes of plant growth regulators have been identified as plant hormones, but scientists believe that there are more waiting to be discovered. The five growth hormones include auxins, gibberellins, cytokinins, abscisic acid, and ethylene. Collec...
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This application presents a fast, easy, and cost-effective method for the determination of 24 pesticide residues in red wine. Sample preparation involves the extraction of pesticides from red wine using the QuEChERS extraction method (AOAC version). The samples then undergo cleanup by dispersive solid-phase extraction (dSPE) using primary secondary amine (PSA) sorbent, which effectively retains...
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ژورنال
عنوان ژورنال: Journal of Food and Drug Analysis
سال: 2018
ISSN: 1021-9498
DOI: 10.1016/j.jfda.2017.08.001