恩曲替尼

Publisher: Wiley Number Of Pages: 308 Publication Date: 2010-01-19 ISBN-10 / ASIN: 0470772859 ISBN-13 / EAN: 9780470772850Product Description:This book covers one of the most important areas in analytical sciences, i.e. that of extraction techniques for organic compounds in environmental and related matrices, e.g. food. This text discusses all of the key stages for analysing a sample for organic compounds from the initial sampling protocols through to the range of different extraction techniques used for solid, liquid and air samples and finally through to the final chromatographic analysis. The text provides detailed information on specific extraction techniques to prepare samples for organic compound analysis.The topics covered include the following:Initial steps for solid, aqueous and air sampling. Extraction techniques for aqueous samples, including LLE, purge and trap, SPE, SPME, SBSE, SDME, membrane microextraction and MEPS. Extraction techniques for solid samples, including Soxhlet, "Soxtec", shake-flask, sonication, PFE, MAE, SFE and MSPD. Extraction techniques for air sampling, including whole air, enrichment approaches and desorption techniques. Pre-concentration approaches for post-extraction. Practical aspects for chromatographic analysis (GC and HPLC) of organic compounds. Quality assurance aspects of analysis. Health and safety considerations.

我们这些做液相的，肯定是离不开前处理。所以分享下面一本书：分析科学中的萃取技术Extraction Techniques in Analytical Sciences.pdf（http://bbs.instrument.com.cn/shtml/20100915/2788526/）(阅读跟下载地址在本论坛“前处理”版块)

實驗室導入EN71-3方法, 遇到前處理的一些問題, 求助大家.實驗用材料為塑料顆粒, 經過粉碎.1) 加入萃取鹽酸溶液, 樣品粉末浮在溶液上, 經過搖擺, 粉末還會黏在溶器內壁上, 這樣會影響萃取量, 怎麼解決? 2) 是否可以加入浸潤劑? 請推薦可用的浸潤劑, 實驗需添加多少量?3) 有沒有標準物質用來做回收率驗証?新接觸這個方法, 請大家分享一些經驗, 謝謝