{"id":401730,"date":"2024-10-20T04:57:47","date_gmt":"2024-10-20T04:57:47","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-175042022\/"},"modified":"2024-10-26T08:47:17","modified_gmt":"2024-10-26T08:47:17","slug":"bs-en-175042022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-175042022\/","title":{"rendered":"BS EN 17504:2022"},"content":{"rendered":"

This document specifies a method for the determination of free gossypol, extractable by acidified acetonitrile\/water, in cottonseed, cottonseed products and compound feeds by liquid chromatography with tandem mass spectrometry (LC-MS\/MS). The method described in this document has been successfully validated in the range of 69 mg\/kg to 5 950 mg\/kg by collaborative trial in the following matrices: cottonseed, cottonseed products (cake\/meal, hulls) and compound feeds for bovine, porcine and poultry. NOTE It is possible to reach quantification limits of approximatively 5 mg\/kg in compound feeds. The method might be applicable at lower and at higher concentrations than the concentration range validated in the collaborative trial. However, this needs to be assessed by in-house validation.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents <\/td>\n<\/tr>\n
9<\/td>\n6 Apparatus <\/td>\n<\/tr>\n
10<\/td>\n7 Procedure
7.1 General
7.2 Sample pre-treatment <\/td>\n<\/tr>\n
11<\/td>\n7.3 Test portion
7.4 Extraction <\/td>\n<\/tr>\n
12<\/td>\n8 LC-MS\/MS analysis
8.1 General <\/td>\n<\/tr>\n
13<\/td>\n8.2 Analysis sequence
9 Results
9.1 Identification <\/td>\n<\/tr>\n
14<\/td>\n9.2 Quantification <\/td>\n<\/tr>\n
16<\/td>\n10 Precision
10.1 General
10.2 Repeatability
10.3 Reproducibility <\/td>\n<\/tr>\n
17<\/td>\n11 Test report <\/td>\n<\/tr>\n
18<\/td>\nAnnex A (informative)Precision data <\/td>\n<\/tr>\n
20<\/td>\nAnnex B (informative)Example of LC-MS\/MS conditions
B.1 General
B.2 HPLC conditions <\/td>\n<\/tr>\n
21<\/td>\nB.3 MS conditions <\/td>\n<\/tr>\n
22<\/td>\nAnnex C (informative)Example chromatogram gossypol in compound feed <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Animal feeding stuffs: Methods of sampling and analysis. Determination of gossypol in cotton seed and feeding stuff by LC-MS\/MS<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2022<\/td>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":401738,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-401730","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/401730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/401738"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=401730"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=401730"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=401730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}