Simple, cost-effective and sensitive liquid chromatography diode array detector method for simultaneous determination of eight sulfonylurea herbicides in soya milk samples.
In this study authors propose a simple, cost-effective and sensitive liquid chromatography diode array detector (HPLC-DAD) method for the simultaneous determination of eight sulfonylurea herbicides (oxasulfuron, metsulfuron-methyl, triasulfuron, rimsulfuron, chlorsulfuron, mesosulfuron-methyl, amidosulfuron and bensulfuron-methyl) in soya milk samples. QuEChERS-based extraction procedure presents good performance for all of the analytes with recoveries in the range of 61-108% and relative standard deviations (RSD%) less than 15%. No significant matrix effect was observed thanks to application of effective zirconium-dioxide based sorbent (Z-Sep). Method LOQs for all investigated analytes were set at satisfactory low value of 10ngmL-1of food product. The procedure was evaluated in terms of natural samples analysis. Chlorsulfuron was determined at concentration of 14.2ngmL-1of soya milk product, which was qualitatively confirmed via LC coupled with tandem mass spectrometry (LC-MS/MS). The most important steps of procedure optimization are presented.
Departament of Physical Chemistry, Chair of Chemistry, Medical University in Lublin, 4A Chodzki Street, 20-093 Lublin, Poland. Electronic address: tomasz.rejczak@gmail.com.
Tomasz
T
Rejczak
Departament of Physical Chemistry, Chair of Chemistry, Medical University in Lublin, 4A Chodzki Street, 20-093 Lublin, Poland. Electronic address: tomasz.tuzimski@umlub.pl.
Tomasz
T
Tuzimski
D002851:Chromatography, High Pressure Liquid / Q000191:economics* / Q000295:instrumentation*; D003257:Consumer Product Safety; D005504:Food Analysis / Q000191:economics / Q000295:instrumentation; D006540:Herbicides / Q000032:analysis* / Q000737:chemistry; D041942:Soy Milk / Q000737:chemistry*; D013453:Sulfonylurea Compounds / Q000032:analysis* / Q000737:chemistry; D053719:Tandem Mass Spectrometry
D006540:Herbicides; D013453:Sulfonylurea Compounds
HPLC–DAD analysis; Matrix effect; QuEChERS; Soya milk; Sulfonylurea herbicides; Zirconium-dioxide based sorbent