氯乙酸

A: just one more step suffices: treat samples with trichloroacetic acid first.

答：只要多一道步骤即可：先用三氯乙酸处理样品。

METHODS: Serum protein was precipitated with trichloroacetic acid .HPLC was used for determination of 5-Fu .

三氯乙酸沉淀血清中蛋白质，高效液相色谱法测定含量。

Trichloroacetic acid is a kind of short-stopper which can stop enzymatic reaction.

三氯乙酸是澳洲青苹PPO酶促反应有效的终止剂。

The detection wavelength was 254 nm.tissues were treated with trichloroacetic acid to precipitate impurities.

样品处理采用30%三氯乙酸沉淀内源性杂质。

The influence of various parameters on clean-up of neomycin in milk, including the concentration of trichloroacetic acid, centrifugation speed, the flow rate and the concentration of eluent, were investigated.

考察了三氯乙酸浓度、离心力的大小、样品过固相萃取柱的速度以及洗脱剂浓度等因素对牛奶中新霉素测定结果的影响。

Urine samples were first precipitated with trichloroacetic acid, then centrifuged at 12000 r/min for 15 min at 4 ℃, and finally added with NaOH to neutralize the supernatant.

尿标本经三氯乙酸处理，在4 ℃下，以12000 r/min的速率离心15 min，上清液用碱中和后，取30 μL直接进样。

Cryosurgery and laser evaporation are common therapy for SK. Recently, some new treatment strategies have been developed for it, including topical trichloroacetic acid, systemic acitretin, and so on.

脂溢性角化病的治疗以冷冻、激光为主，但近年来也出现一些新的疗法，如局部外用三氯乙酸，系统应用阿维A等。

Methods Conjugated with protein precipitation with trichloroacetic acid, BCA method was used.

使用三氯乙酸沉淀蛋白质后，运用BCA法，在570 nm波长处，分别测定标准蛋白质应用液与样品稀释液的吸光度值，基于测定液中蛋白质含量与其吸光度值呈正比关系，计算出样品中蛋白质的含量。

Methods Triethyl phosphite and ethyl chloroacetate were used as starting materials to synthesize pregabalin by Arbuzov reaction, Wittig-Horner reaction, Michael addition, reduction and resolution.

以亚磷酸三乙酯和氯乙酸乙酯为起始原料，经Arbuzov反应、Wittig-Horner反应、Michael加成、还原、拆分5步反应得到普瑞巴林。

Carboxymethyl fenugreek gum with different degree of substitution was synthesized with NaOH and sodium monochloroacetate powder as the basifying and etherifying agents.

通过加入NaOH与一氯乙酸钠固体进行香豆胶的碱化和醚化，制备了不同取代度的羧甲基香豆胶。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。