乙酸

Objective To establish a method for determination of sorbic acid and benzoic acid in ham by HPLC. Methods Sea sand were added into samples-distill by water in the condition of alkalescence vibratedly-add potassium ferrocyanide and zinc acetate (to deposit protein, faecula,fat.)-determination by HPLC after filtration.

目的 建立火腿肠食品中苯甲酸、山梨酸的高效液相色谱测定方法方法样品加入海砂分散黏稠成块的样品，在碱性条件下用水振荡提取，加入亚铁氰化钾和乙酸锌沉淀蛋白质、淀粉和脂肪等，滤膜过滤进行液相色谱分析。

The zinc acetate, the potassium ferrocyanide and the potassium binoxalate are used as the sample preparation reagent of calcium tablets, and the hydrogen peroxide in samples can be extracted in weak-acid medium and 60℃ water bath.

采用乙酸锌、亚铁氰化钾和草酸氢钾作为前处理试剂，在弱酸性介质和60℃条件下提取过氧化氢。

Trichloroacetic acid was esterified by acid and methanol,and FID detector was used.

建立一种可靠的测定水中三氯乙酸含量的气相色谱法。

VINEGAR SOUP FOOTBATH is prepared by combining the concentrated vinegar and mineral salts to make the effective ingredients of vinegar to be absorbed by skin more easier for athlete's foot, rheumatoid arthritis; weight-losing and skin nourishing.

本品香醋汤の沐足将具有散瘀解毒、散水气的食醋与矿物盐进行完美结合，使食醋中的乙酸、氨基酸、微量元素有效成分更容易

The successful synthesis of 1 provides us an intriguing reaction in which acetate is turned into formate under the hydrothermal synthesis conditions.

化合物1的成功合成使我们发现了一个由乙酸盐直接转化为甲酸盐的全新的化学反应方法。

Then, N-for-aspartame was obtained from the reaction of 3-formyl-4-carboxymethyl-1,3-oxazolidine-5-one and L-phenylalanine methylester hydrochloric acid under sodium acetate anhydrous in ethyl acetate, and the target product was prepared after removing formyl in the mixture system of hydrochloric acid, methanol and water, the yield of aspartame reaches 89.2%.

最后，用3-甲酰-4-羰基口恶唑烷-5-酮乙酸与L-苯丙氨酸甲酯盐酸盐在溶剂中进行接肽反应，然后在甲醇/盐酸混合体系中进行脱甲酰保护基，从而得到最终目标产物，产率为89.2%。

In this dissertation, two derivatives of aniline containing polyoxyethylene substituent m-phenylene diamino formyl alkylenediamine poly acetate and poly-3-aminobenzoate were designed and synthesized. And then, comb-shaped polyaniline grafted by PEO were prepared by chemical oxidation copolymerization. The structure of copolymers were characterized by FTIR, ultraviolet-visible spectrum, elemental analysis and TEM etc..

本文在设计并合成两种含聚氧乙烯取代基的苯胺衍生物——间苯二氨基甲酰己二氨基甲酸聚氧乙烯乙酸酯和3-聚氧化乙烯单甲醚基苯胺的基础上，采用化学氧化法将它们与苯胺进行共聚，制备出了聚氧乙烯接枝聚苯胺的梳型共聚物。

Acetic acid is the most important component of furfural wastewater, which was degraded by UV/O3 method.

利用UV/O3法对糠醛废水中的乙酸进行光氧化降解实验。

A new method for the determination of methanol, ethyl acetate and fusel oils in the Chinese spirits by capillary gas chromatography was studied.

建立了一种用毛细管气相色谱法测定白酒中甲醇、乙酸乙酯和杂醇油的方法，并对色谱条件进行了优化。

A new method for the determination of methanol, Ethyl Acetate and fusel oils in sticky rice alcohol by capillary gas chromatography was studied.

建立了一种用毛细管气相色谱法测定糯米酒中甲醇、乙酸乙酯和杂醇油的方法，并对色谱条件进行了优化。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新