酸值

The results indicated that the content of amygdalin, crude fat content, acid value , peroxide value and carbonyl value changed significantly.

对高温条件下苦杏仁品质稳定性进行了研究，结果表明：高温环境下苦杏仁中的苦杏仁甙含量、脂肪含量、酸价、过氧化值和羰基值发生明显变化，影响了苦杏仁品质。

The result indicated :(1) phosphoric acid could effectively reduce the pH value in calcareous soil .

试验结果表明：①磷酸能有效地降低石灰性土壤的pH值，在本试验条件下，要使土壤pH值由8.89降低到6.0左右，最佳酸用量为3.27g。

Molecular conformation calculations were made for two possible conformers(eclipsed and staggered with respect to the methyl group)of the compound Calculated results show that:the stable conformer of pyruvic acid is the eclipsed one;The BLYP/6-31G* and scaled HF/6-31G* frequencies correspond well with each other and with available experimental assignment of the normal vibrational modes.

结果表明：在丙酮酸分子的两种构象中，重叠式比较稳定*B3LYP计算得到的构型参数与实验结果比较一致；在振动频率的计算中，BLYP未标度力场所计算的非CH3伸缩振动基频预测值和实验值的平均绝对偏差为10.4cm-1；而HF标度力场的平均绝对偏差为17.9cm-1。

It indicated that the growth and acid production of S.mutans were higer in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while lower in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration.

在8%、12%、16%浓度下，赤藓糖醇培养基的A值较木糖醇培养基低，pH值较木糖醇培养基高，说明变异链球菌在含8%、12%、16%赤藓糖醇的培养基内的生长和产酸能力明显较相同浓度木糖醇培养基低。

Results The data of A were higher in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while lower in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration. The data of pH were lower in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while higer in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration.

结果 在0.5%、1%、2%浓度下，赤藓糖醇培养基的A值较木糖醇培养基高，pH值较木糖醇培养基低，说明变异链球菌在含0.5%、1%、2%赤藓糖醇的培养基内的生长和产酸能力明显较相同浓度木糖醇培养基高。

The experiments revealed that sodium humate has little effect on the relation between the slurry neutralizing value and the pH value, and the relation between Z and pH value is almost a straight line.

实验得出添加腐殖酸钠对料浆中和度与其PH 值之间关系的影响很小，料浆中和度Z 与PH 值之间近似直线关系，用最小二乘法进行线性拟合，可得关系式： Z =

Results show that 4-oxo-β-ionone is the major product with yield of 53.5% under the conditions as follows: reaction temperature 45℃, reaction time 24 h, the molar ratio of n: n(NaClO3): n 20: 100: 3, and pH value of solution in 1-3; on the other hand, 5,6-epoxy-β-ionone is major product with yield of 25.4% when reaction temperature is 40℃, reaction time is 24 h, the molar ratio of n: n(NaClO3): n is 20: 120: 5, and pH values of solution is 3. The excessive β-ionone can be recovered by vacuum distillation for reusing again. 4-oxo-β-ionone and 5,6-epoxy-3-ionone were purified by recrystallization and silica gel column chromatograph respectively with the purity over 98%.

研究结果表明：氯酸钠氧化β-紫罗兰酮的反应主要生成4-氧代－β-紫罗兰酮和5，6-环氧－β-紫罗兰酮，经重结晶和硅胶柱层析分离，纯度高于98%；4-氧代－β-紫罗兰酮的有利合成条件是反应温度为45℃，反应时间为24h，溶液的pH值为1~3，反应物配比n：n(NaClO3)：n为20：100：3，最佳收率为53.5%；5，6-环氧－β-紫罗兰酮有利的合成条件是反应温度为40℃，反应时间为24h，溶液的pH值为3，反应物配比n：n(NaClO3)：n为20：120：5，其收率为25.4%；未反应的β-紫罗兰酮经减压蒸馏回收后可重复使用。

Results: It is fund that the color turning and precipitation phenomena of Amoxicillin Sodium and Clavulanate Potassium are related to the certain conditions ( e.g. moisture content, temperature, light, menstruum, PH value and time) under which the process takes place.

结果本品配伍液变色与阿莫西林钠和克拉维酸钾在一定条件下（水分、温度、光线、溶媒及pH值、时间）分解有关；沉淀与配伍时温度低、pH值低、浓度高有关。

The two enantiomers are obtained by recrystallisation from solvent C.

值可达99%以上，拆分后的--邻氯扁桃酸对于消旋邻氯扁桃酸的一半的收率为36.7%。

For the first pair, the relative separation results are 5.7 and 8.6 respectively and the absolute separation results are 111.5 and 168.0 respectively through cysteine and carbamidine thiocyante modified gold nanotubules.

基于pH值和蛋白变性试剂的双重作用，分离了牛血清白蛋白/免疫球蛋白，在半肤氨酸、异硫氰酸肌修饰的金纳米通道阵列内，相对分离度分别为31 。6、23.1。

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。