乙酸的

Sodium formaldehyde sulfoxylate can break down into formaldehyde and sulfur dioxide in process of using.

吊白块在使用过程中会分解出甲醛和二氧化硫，先用乙酸铅试纸法[1]对样品进行定性筛选，可疑样品再用分光光度法[2]测量甲醛的含量，判断是否含有吊白块。

Under thermophilic conditions,the δ13CH4 values remained at a level about -70‰,showing that methane were solely produced from CO2reduction,and acetate syntrophic oxidation happened during the active methane production phase.

高温（55℃）条件下，δ13CH4值始终维持在约-70‰，表明甲烷主要由CO2还原作用生成，在快速产CH4阶段，乙酸氧化和CO2还原作用是CH4生成的重要途径。

Secondary fermenters:key organisms in the conversion of complex organic materials to methane (espacially the H2-producing fatty acid-oxidizing bacteria).23、List two syntrophic microorganisms and describe a bit.

乙醇发酵菌发酵乙醇产生H2和乙酸，产甲烷菌消耗利用乙醇酵解菌产生的H2，总反应为产能反应，产甲烷菌不能直接利用乙醇。

A series of novel amphipathic macrocyclic polyamine ligands derived from iminodiacetic acid and diethylene triamine have been synthesized and characterized by MS, 1H NMR, IR spectra and elemental analysis.

以亚胺基二乙酸和二乙撑三胺为原料，通过关环等反应合成了一类侧链含有羟基的新型两亲性大环多胺。

Results It has been shown that trichloroacetic acid was the better one as cross-link agent.

结果 三氯乙酸是较好的交联剂。

The two indexes, degree of hydrolysis and 10% trichloroacetic acid-soluble nitrogen content, were used to compare the four kinds of proteolysis in naturally .

以蛋白水解度和10%三氯乙酸可溶性氮含量为指标，比较四种蛋白酶在两种工艺下水解的情况。

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。

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。

The reaction of sucrose with triethyl orthoacetate is carried out in DMF solution catalyzed with toluene p-sulphonic acid at ambient.

以DMF为反应介质，对甲苯磺酸催化原乙酸三乙酯与蔗糖室温下的环酯化反应。

Methods Male NIH rats were treated with water containing 0.1% lead acetatic trihydrate for establishing an experimental lead poisoning rats model.

方法取小鼠，饮水给予。1%三水合乙酸铅水溶液建立小鼠预防性铅目的评价QQL排铅口服液的促进排铅功能。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。