Dimethylglyoxime modified bismuth diskelectrodes are proved to be alternatives to the mercuryelecˉtrodes used for adsorptive voltammetric measurements of trace cobalt.

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Health care function tests: Immunomodulation test, anti-mutation test, anti-fatigue test and oxygen lack tolerance test have been done using white wax scale, according to the regulations for health care food.

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Methods 107 cases of reflux esophagitis were divided into 3 groups. Scheme A(n=33),domperidone (10 mg po,tid);Scheme B(n=38), Ranitidine bismuth citrate (350 mg,po,bid ) and Scheme C(n=36), omeprazole(40 mg,po,qd) for 4 weeks. Data was evaluated using the pharmacoeconomic costeffectiveness.

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The metal sample is dissolved with HCl H 2O 2, and the dissolved nickel is separated from other activation products by anion exchange. Nickel is then complexed with pealetyldioxime in the alkaline solution, extracted with toluene, and finally determined by liquid scintillation counter.

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ABSTRACT: In the presence of sodium t-butoxide and DMSO,ethyl 2-oxocyclopentanecarboxylate was subjected to C-alkylation with 2-(4-bromomethylphenyl)propanoic acid with high regioselectivity to give 2-［4-(1-ethoxycarbonyl-2-oxo-1-cyclopentanylmethyl)phenyl］propanoic acid (4) which was followed by hydrolysis,decarboxylation and salt formation to afford loxoprofen sodium in about 72% overall yield.

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Polyurethane-acrylics hybrid latexes were prepared using isophorone diisocyanate, dimethylol propanoic acid and polypropylene oxides of different molecular weights as main materials for PU component, and butyl acrylate, methyl methacrylate and a crosslinker, trihydroxymethyl propanetriacrylate as main acrylic monomers. Hydroxyethyl acrylate was used as the coupling agent between PU and AC.

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A simple,rapid,sensitive and accurate RP HPLC for simultaneous determination of ketamine, phenobarbitone and atropine in plasma was established.

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Methyl isobutyl ketone is a good origanic slovent and the advanced process for producing MIBK is one-step synthesis by gas-phase condensation and hydrogenation of acetone. In this process, the key technology is to develop the multi-fuctional catalyst, which has both the ability of hydrogenateon and condensation, as well as suitable acid-base sites.

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A new catalyst Ni K/NaX for the synthesis of methyl isobutyl ketone from acetone and hydrogen in one step at atmospheric pressure has been prepared.

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The Pd-supported catalyst on MCM-22 synthesized by static method shows a higher acetone conversion than that prepared by dynamic method in one-step synthesis of methyl isobutyl ketone from acetone.

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