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Phenylalanine agar is recommended for the detection of production of phenylpyruvic acid from phenylalanine by deamination. A positive reaction results in a green coloration after the application of 10% ferric chloride.

苯丙胺酸培养基可用来测定苯丙胺酸经去胺反应所产生的苯丙酮酸,在滴加10%氯化铁溶液后,如呈现绿色,即表示有反应。

The role of arginine to assist protein refolding was similar to that of acetone, both of them were able to combine with the denature lysozyme and improve the refolding yield.

结果表明,与自发复性收率(40%)相比,复性液中添加精氨酸、甘油、乙酰胺、丙酮、硫脲、海藻糖和甜菜碱均能有效提高变性溶菌酶的复性收率。

Depolymerization of wheat stalk by oxidation in H2O2-acetone systems under microwave irradiation was examined by orthogonal test.

在微波辐射下通过正交实验研究麦秆在H2O2/丙酮体系中氧化解聚的适宜条件。

Adsorption of ethanol, acetone and N-Methyl-2-pyrrolidone on activated carbon fiber were measured respectively by static desiccator method.

采用静态保干器法测定了活性炭纤维对乙醇、丙酮、N-甲基吡咯烷酮的吸附量。

Acetone extractives in masson pinegroundwood pulp were isolated and analyzed through the employment of DEAE-Sephadex ion exchange chromatography and GC/MS.

利用DEAE-Sephadex离子交换色谱和气相色谱-质谱联用技术,对马尾松磨木浆丙酮抽出物的化学成分进行了分离及分析。

Halitosis may follow eructation from the GI tract or may be caused by systemic metabolic conditions--eg, an a cet one odor with diabetes mellitus, a mousy odor with liver failure, and a urinous odor with kidney failure.

口臭也可随胃肠道的嗳气而来或由系统性代谢性疾病引起,也即丙酮味与糖尿病有关,鼠臭味与肝功能衰竭有关,尿味与肾功能衰竭有关。

Halitosis may follow eructation from the GI tract or may be caused by systemic metabolic conditio --eg, an acetone odor with diabetes mellitus, a mousy odor with liver failure, and a urinous odor with kidney failure.

口臭也可随胃肠道的嗳气而来或由系统性代谢性疾病引起,也即丙酮味与糖尿病有关,鼠臭味与肝功能衰竭有关,尿味与肾功能衰竭有关。

The total oxidation temperature for toluene, acetone, and ethyl acetate was at 220, 260, and 280 ℃ for the catalyst calcined at 500 ℃, respectively.

该催化剂上甲苯、丙酮和乙酸乙酯的完全氧化温度分别为220、260和280℃。

Objective To investigate the mutation characteristics in exon 7 of the PAH gene in phenylketonuria patients in Xinjiang.

目的研究分析新疆地区苯丙酮尿症患者中苯丙氨酸羟化酶基因外显子7的突变特征。

Secondly,a mixture of acetone and methyl formate was added into the methanol solution of sodium methoxide to prepare sodium formyl acetone by Claisen reaction.

以金属钠为原料,甲醇为溶剂,先制成甲醇钠的饱和甲醇溶液,再滴加丙酮和甲酸甲酯进行Claisen酯缩合制得丁酮烯醇钠,最后在强酸作用下与甲醇进行缩醛化反应合成了4,4-二甲氧基-2-丁酮,过程总收率达到73.1%,纯度98.7%。

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