{"id":409253,"date":"2024-10-20T05:34:40","date_gmt":"2024-10-20T05:34:40","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-176412022\/"},"modified":"2024-10-26T10:13:11","modified_gmt":"2024-10-26T10:13:11","slug":"bs-en-176412022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-176412022\/","title":{"rendered":"BS EN 17641:2022"},"content":{"rendered":"
This document describes a method using isotopically labelled standards for the quantitative determination of aflatoxins B1, B2, G1, G2 and M1 (AFB1, AFB2, AFG1, AFG2 and AFM1), ochratoxin A (OTA), deoxynivalenol (DON), zearalenone (ZEN), T-2 and HT-2 toxins (T-2 and HT-2) and fumonisins B1 and B2 (FB1 and FB2) in foods by liquid chromatography (LC) coupled with tandem mass spectrometry (MS\/MS). A specific immunoaffinity column (IAC) clean-up is needed for aflatoxins (AFs) and OTA in food intended for infants and young children (e.g. infant cereals, milk-based powders), in spices, in dried fruits and in nuts. The method has been validated through an intercollaborative study on different commodity groups: cereals and cereal-based products including food for infant and young children, nuts, spices, dried fruits and milk powder. The measuring range of each mycotoxin in these naturally contaminated and\/or spiked food samples were: – AFB1: 0,085 7 \u00b5g\/kg – 11,4 \u00b5g\/kg; – AFB2: 0,079 2 \u00b5g\/kg – 12,5 \u00b5g\/kg; – AFG1: 0,062 8 \u00b5g\/kg – 20,9 \u00b5g\/kg; – AFG2: 0,052 0 \u00b5g\/kg – 15,0 \u00b5g\/kg; – AFM1: 0,034 2 \u00b5g\/kg – 0,110 \u00b5g\/kg; – OTA: 0,448 \u00b5g\/kg – 17,2 \u00b5g\/kg; – DON: 45,2 \u00b5g\/kg – 743 \u00b5g\/kg; – ZEN: 9,57 \u00b5g\/kg – 131 \u00b5g\/kg; – T-2: 10,3 \u00b5g\/kg – 57,9 \u00b5g\/kg; – HT-2: 9,50 \u00b5g\/kg – 81,8 \u00b5g\/kg; – FB1: 31,1 \u00b5g\/kg – 4 260 \u00b5g\/kg; – FB2: 44,2 \u00b5g\/kg – 1 300 \u00b5g\/kg. The measuring ranges of the method for each mycotoxin\/matrix combination are given in Table 8.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 4 Principles 5 Reagents <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | 6 Apparatus and equipment <\/td>\n<\/tr>\n | ||||||
16<\/td>\n | 7 Procedure 7.1 Preparation of the laboratory sample 7.2 Test portions weighing 7.2.1 Cereals, cereal-based products 7.2.2 Milk powders, nuts, spices, dried fruits 7.3 Spiking with ISTD solutions 7.4 Extraction 7.4.1 General procedure <\/td>\n<\/tr>\n | ||||||
17<\/td>\n | 7.4.2 Without IAC clean-up 7.4.3 With IAC clean-up <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | 8 LC-MS\/MS analysis 8.1 Operating conditions 8.2 Injection sequence <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | 8.3 Data treatment 9 Calculations 9.1 Identification and confirmation 9.2 Calibration curve and measuring range <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | 9.3 Calculations <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | 10 Precision 10.1 General 10.2 Repeatability 10.3 Reproducibility <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | 11 Test report <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | Annex A (informative)Precision data <\/td>\n<\/tr>\n | ||||||
41<\/td>\n | Annex B (informative)Overview of the sample preparation <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | Annex C (informative)Example conditions for suitable LC-MS\/MS systems C.1 General C.2 LC system settings examples C.2.1 LC conditions 1 <\/td>\n<\/tr>\n | ||||||
43<\/td>\n | C.2.2 LC conditions 2 C.2.3 LC conditions 3 <\/td>\n<\/tr>\n | ||||||
44<\/td>\n | C.2.4 LC conditions 4 <\/td>\n<\/tr>\n | ||||||
45<\/td>\n | C.2.5 LC conditions 5 C.3 MS system settings examples C.3.1 MS conditions 1 <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | C.3.2 MS conditions 2 <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | C.3.3 MS conditions 3 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Foodstuffs. Multimethod for the determination of aflatoxins, deoxynivalenol, fumonisins, ochratoxin A, T-2 toxin, HT-2 toxin and zearalenone by LC-MS\/MS<\/b><\/p>\n |