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13篇 您的检索式:作者名="Witkamp T"
    题名 作者 年代 出处 被引量
1高分辨电感耦合等离子质谱测定黄连中的微量元素显示文摘文章采用高分辨电感耦合等离子体质谱(HR-ICP-MS)的方法,测定了中草药中四种黄连——味连、雅连、马尾连和胡黄连中的微量元素。结果表明:在所有16种稀土元素中,La,Ce,Nd,Gd,Sm,Sc含量较高,胡黄连的稀土总量为5.18μg·g^(-1),是所有四种黄连的最高者,其次是雅连和马尾连,最低的是味连(1.26μg·g^(-1))。而对于与清热解毒有关的金属无素如Mg,Mn,Zn,Ca和Fe元素,雅连中Mg,Mn,Zn的含量最高。高Fe和Ca的含量存在于马尾连和胡连之中。在测定不同提取方法的提取物中发现,只有部分的稀土元素能被醇和水所提取,它们分别是31.6%和4.1%。清热解毒元素的提取率明显高于稀土元素。王小逸 Zhu W Witkamp G T 曾衍钧 2003光谱学与光谱分析2003,23,6:20
2The production of pure NaCl by the antisolvent crystallisation of NaCl · 2H2O and a consecutive recrystallisation step显示文摘ZIJLEMA T G HOLLMAN R J A J WITKAMP G J 1999Journal of Crystal Growth1999,,:1
3Time-dependent behavior of different ice slurries during storage显示文摘Pronk P Hansen T M Infante Ferreira C A Witkamp G J 0,,:1
4The effct of alumiunium fluoride on the formation of calcium sulfate hydrates显示文摘Emile T M J Martynowicz Witkamp G J Gerda M van Rosmalen 1996Hydrometallurgy1996,,41:1
5Crystallization of sodium chloride with amines as anti-solvents显示文摘Zijlema T G Oosterhof H Witkamp G J 1997Am Chem Soc1997,,:1
6Recovery of Na2SO4 ·10H2O from a reverse osmosis retentate by eutectic freeze crystallization technology显示文摘Reddy S T Lewis A E Witkamp G J 0,,09:1
7Antisolvent crystallization as an alternative to evaporative crystallization for the production of sodium chloride显示文摘Zijleam T G Geertman R M Witkamp G J 2000IndEng Chem Res2000,39,5:1
8Antisolvent crystallization as an altemative to evaporative crystallization for the production of sodium chloride显示文摘Zijlema T G Geertman R M Witkamp G J 2000Ind Eng Chem Res2000,39,3:1
9Diazepam-enhanced beta activity in Sturge Weber syndrome:its diagnostic significance in comparison with MRI显示文摘Jansen F E van Huffelen A C Witkamp T 2002Clin Neurophysiol2002,113,7:1
10Computerized tomography angiography in patients with subarachnoid hemorrhage:from aneurysm detection to treatment without conventional angiography显示文摘Velthuis B K Van Leeuwen M S Witkamp T D 1999J Neurosurg1999,91,5:1
11Antisolvent crystallization as an alternative to evaporative crystallization for the production of sodium chloride 显示文摘Zijlema T G Geertman R M Witkamp G J 2000Ind Eng Chem Res2000,39,3:1
12Antisolvent crystallization as an alternative to evaporative crystallization for the production of sodium chloride显示文摘ZIJLEMA T G GEERTMAN R M WITKAMP G J 2000Ind Eng Chem Res2000,39,5:1
13Comparative aspects and sex differentiation of plasma sulfamethazine elimination and metabolite formation in rats, rabbits, dwarf goats and cattle 显示文摘Witkamp RF Yun HI Van't Klooster GAE 1992American Journal of Veterinary Research1992,53,10:1
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