{"id":343897,"date":"2024-10-20T00:08:42","date_gmt":"2024-10-20T00:08:42","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iso-tr-188182017\/"},"modified":"2024-10-25T23:28:39","modified_gmt":"2024-10-25T23:28:39","slug":"bsi-pd-iso-tr-188182017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iso-tr-188182017\/","title":{"rendered":"BSI PD ISO\/TR 18818:2017"},"content":{"rendered":"
This document describes a screening method for rapid sampling and identifying of diethanolamine (DEA) in cosmetics and raw materials used in cosmetics by gas chromatography \u2013 mass spectroscopy (GC-MS).<\/p>\n
This method is not applicable to the detection and\/or quantification of DEA-related ingredients. When this method is used to analyse unfamiliar sample matrices analysts are advised to confirm the applicability and flexibility of the techniques in their matrix.<\/p>\n
Under the conditions specified this method is reliable for quantification with DEA level at 1 000 mg\/kg (0,1 %).<\/p>\n
However, samples with lower concentrations (<0,1 %) or otherwise unusual compositions or characteristics can present difficulties (such as, for example, peak tailing) that preclude the direct use of this method.<\/p>\n
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2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | 5 Procedure 5.1 Preparation of calibration solutions 5.1.1 Stock solution 5.1.2 Standard solution 5.1.3 Calibration solutions 5.2 Sample preparation 5.3 Analysis 5.3.1 General <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | 5.3.2 Example of instrumental conditions 5.3.3 Recovery 5.3.4 Calibration curve <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 5.4 Determination 6 Limit of quantification <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | Annex\u00a0A (informative) Examples of typical GC-MS chromatogram of standard DEA <\/td>\n<\/tr>\n | ||||||
14<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Cosmetics. Analytical method. Detection and quantitative determination of Diethanolamine (DEA) by GC\/MS<\/b><\/p>\n |