The sequence of extraction of the alkaline earths elements by the TBP depends on the concentration of the cations and is Ca > Be > Sr > Mg if the metal concentration is lower than 2 M.doi:10.1002/hlca.19720550827G. BrunisholzW. HirsbrunnerJ. AernyHelvetica Chimica Acta...
C18 solid phase extraction (SPE) columns, Biotage Isolute SAX cartridges and MultiSep226 AflaZon+ multifunctional columns were purchased from Alltech (Lokeren, Belgium), Anatech Instruments (Pty) Ltd (South Africa) and Romer Labs (Gernsheim, Germany), respectively. Ten (10) mL NORM-JECT plastic...
C, Air Liquide (Madrid, Spain) was used to drive the pneumatic systems and to purge the Peltier coolers on the cold trap. The analyses were performed using gas chromatography sys- tem 6890 coupled to a 5973 inert mass-selective detector both of Agilent Technologies (Palo Alto, CA, USA). ...
文档格式: .pdf 文档大小: 4.62M 文档页数: 11页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: 文档分类: 待分类 系统标签: extractioncompositionalparticulateextractedtechniquesatmospheric Compositionalvarianceinextractedparticulatematterusingdifferent filterextractiontechniques K.J.Bein a,b,c,* ,A....
, consisting of a high pressure pump (up to 10,000 psi capacity), extraction cell (100 mL), oven (with heater), static/dynamic valve and restrictor valve, rotameter, totalimeter and CO2 cylinder with angler tube (high purity liquid CO2, (99.9%, Air Liquide, São Paulo, Brazil). In...
Liquid Nitrogen was from Air Liquide (Nancy, France). The synthesis of 5-(4-carboxyphenyl)-10,15,20-triphenyl porphyrin (P1COOH) has been described elsewhere [25]. 2.2. Fruit Materials The present study focuses on 27 persimmon fruit (Diospyros kaki L.) cultivated in Tunisia (persimmon known...
全球市场工业焊接烟雾抽排系统主要厂商有Nederman、Auto Extract Systems、Miller Welding、Lincoln Electric、Donaldson、Kemper America、Parker Hannifin、RoboVent、Air Liquide、Sentry Air Systems等,按收入计,2024年前五大厂商共占有全球大约 %的市场份额。 MMG调研团队,本文主要调研对象包括工业焊接烟雾抽排系统生产商、...
The separation of yttrium and gadolinium by solvent extraction with di-(2-ethylhexyl)phosphoric acid (H(DEHP)) from solutions in HNO 3 has been studied. The extraction takes place by the same mechanism for both elements. The extraction by the ion-exchange reaction is more selective than the ...
Eicheelberger, J.W., Behymer, T.D., Budde, W.L., 1995. METHOD 525.2 Determination of Organic Compounds in Drinking Water by Liquidesolid Extraction and Capillary Column Gas Chromatography/Mass Spectrometry. National Eeposure Research Laboratory Office of Research and Dev...
EXTRACTION LIQUIDE-GEL DU VANADIUM DU MILIEU THIOCYANATE : COMPARAISON AU SYSTEME LIQUIDE-LIQUIDEThe liquid-gel extraction of vanadium from thiocyanate medium has been studied. The extracting hydrophobic gels has been prepared by swelling cross-linked polybutadiene with solutions of trilaurylammonium ...