中文欧美性爱在线,无码人妻久久一区二区三区免费,亚洲中国日韩久久综合网,亚洲无码在线天堂,亚洲gv天堂无码男同在线观看,A级毛片在线观看AV

Application Note: Claristep Filtration Assembly: A Novel Sample Preparation Method Suitable for the Analytics of Phthalates in Solid Environmental Samples

The filtration clean-up of particle laden environmental samples for phthalates analytics is a common step in sample preparation prior to GC-MS. Here, we demonstrate that Claristep???syringeless filtration units 0.45 μm and 0.2 μm are suitable for the filtration clean-up of phthalate samples. A mix of eight phthalates and one adipate was filtered at a concentration of 10 μg/mL with neither detectable adsorption nor releasing of these compounds from the filter unit. Furthermore, it was shown by GC-MS screening that no detectable compounds were extracted.

Complete the form below to download your copy.

聯(lián)系我們

聯(lián)系我們

莎车县| 商洛市| 东平县| 崇文区| 岱山县| 天柱县| 南昌县| 新安县| 南涧| 泰兴市| 巩留县| 尚义县| 嘉兴市| 凤台县| 那坡县| 海阳市|