ph4

The viscosity of solution was constant within pH4 ~ 10 .

在pH为4～10的范围内，溶液粘度几乎不受影响。

It is suitable to be used at pH4 ~ 12 ;

适宜在pH值4~12之间使用；

Conclusion Papaverine extracted from whole wild poppy by PH4 acid water has a higher extractive rate .

结论野罂粟全草中野罂粟碱用pH4酸水提取得率较高。

The optimum fermentation condition was 20 ℃, pH4 , 4.0 % sugar and dried active yeast .

最优发酵条件为发酵温度20℃，pH值4.0，含糖量4.0%，所用菌种为活性干酵母。

The degradation rates were in the order pH4 < pH7 This shows that alkaline conditions enhance the hydrolysis of these pesticides .

水解速率依次为：pH4＜pH7＜pH10，这说明碱性条件可以加速水解；

A transient rise of intracellular Na + activity accompanied the pH4 recovery . Intracellular Cl - activity was not changed or slightly increased .

伴随着细胞内pH值的恢复，细胞内Na~+活度（Na1~+）呈现暂时性增加，而细胞内Cl-活度（Cl1~+）不变或稍有增加。

In chlorination treatment , a dosage of 3 % chlorine releasing agent should be used at a temperature of 20 ℃ and pH4 in 60 minutes .

氯化整理工艺：释氯剂3%，温度20℃，pH为4，时间60min。

The results indicated : using the water of pH4 - 6 to soak the soybean , the fermentation temperature of 30-35 C and turning material every 8-24 h are suitable for protein decomposition .

结果表明所用微生物在大豆浸泡用水pH4～pH6，发酵温度30℃～35℃，每8h～24h翻料一次，大豆蛋白得到较好的分解效果。

The optimum pH of the laccase was 4.8 , and the laccase was stable from pH4 to 4.8 . The optimum temperature of laccase was 40 ℃;

该酶最适pH为4.8，在pH4~4.8表现出较强的稳定性；

The pathogen could grow in the media with pH4 ~ 9 . The optimum pH for its growth was 7 . The pathogen could grow on all tested carbon and nitrogen sources .

pH4～pH9范围内可以生长，最适pH为7；能利用所有供试的碳氮源。

For the patients with GERD , supine fraction time pH4 was higher than upright one , which might indicate that night reflux induced longer esophageal acid exposure and esophageal mucosal inflammation .

GERD时，卧位pH4百分时间大于立位，提示夜间酸反流造成食管粘膜酸暴露时间明显延长，促发炎性损伤。

The results showed that the for heating technology optimum separating technics parameter is the 75 ℃ for acid-heating technology optimum separating technics parameter is pH4 , and the separating temperature is 50 ℃;

试验结果表明，加热法最佳工艺参数为提取温度为75℃；酸热法最佳提取工艺参数为：pH值为4，提取温度为50℃；

The optimum conditions of dye decolorization were as follows : temperature 28 ℃, pH4 ~ 5 , and dyes added to the culture after 3 days of incubation in shaken flasks .

麦芽汁培养基、温度28℃、pH4～5和菌体摇瓶培养3天后加入染料，是染料脱色的最佳条件；

The optimum conditions of non-thermal processing of garlic inhibition to bacteria on green pepper sauce were : salt content 17 % , garlic content 20 % , ginger content 15 % , pH4 .

大蒜生姜抑菌在青椒调味品非热加工中最佳成分比例为食盐17%，大蒜20%，生姜15%，pH4。

All parameters except for the percentage of time of pH4 at standing position decreased significantly and the symptoms were controlled obviously after antireflux treatment with oral ranitidine for asthmatic children with pathological GER ( P0.01 or 0.05 ) .

经雷尼替丁抗返流治疗后，各项返流指标除了立位pH＜4时间百分比外，均显著下降（P＜0.01或＜0.05），近期随访结果显示，哮喘得到有效控制。

The scorpion venoms of Buthus martensii Karsch from 3 regions in China were separated by SDS-polyacrylamide gel slab electrophoresis , pH4 . 5-polyacrylamide gel slab electrophoresis and iso-electric focusing electrophoresis .

用SDS不连续聚丙烯酰胺凝胶板电泳、pH4.5不连续聚丙烯酰胺凝胶板电泳和聚丙烯酰胺凝胶圆盘等电聚焦电泳，分离我国不同地区东亚钳蝎毒。

The results of the study as follows : ( 1 ) Within the range of pH4 0-11.0 , PIgG was very stable , but when the pH < 4.0 or pH > 11.0 , the stability of PIgG decreased .

在pH4.0～11.0范围内，PIgG十分稳定，pH<4.0或pH>11.0时，PIgG的稳定性下降。

In the paper , the catalytic fade reaction of brilliant cresyl blue oxidized by KIO_4 with Mn (ⅱ) catalysis and amino-triacetic acid activation has been studied at PH4 . 6 ( HAC-NaAc buffer system ) .

本文研究了在pH4.6HAc-NaAc缓冲体系中，高碘酸钾氧化煌焦油兰，锰催化，氨三乙酸活化的催化褪色反应，建立了一个催化光度法测痕量锰的新方法。

The main results are shown as follows : 1 . At pH4 , the formation of crystalline hematite was significantly promoted by humic acids . The XRD diffraction peak of hematite in the presence of HA was stronger than that without HA .

实验取得的主要结果有：1、在pH4时，腐殖酸可明显促进晶质赤铁矿的形成，赤铁矿的XRD特征衍射峰强于不添加腐殖酸合成的氧化铁。

The results in the experiment showed that under such conditions as 3.0 % of activated charcoal used , pH4 , 70C of temperature , 1h of time , the enzymatic hydrolysate of porcine blood were decolorized effectively , and remained high nutritional value .

试验结果表明：在活性炭用量为3.0%，pH为4，温度为70℃，脱色时间为lh的条件下，猪血酶解液的脱色效果明显，而且脱色酶解液具有较高的营养价值。

The results showed that the concentration of alcohol had no significant effect on the extracting effect of lamb rennet , and the milk-clotting activity reached the peak with the5 % salt concentration and20:1 ( v / w ) ratio of solution and abomasums power at pH4 .

结果表明，酒精浓度对提取效果无明显影响；当提取液中食盐浓度为5%、pH为4、提取液与皱胃粉比例为20∶1时，提取羔羊皱胃酶凝乳活性最高。

Ultrasonic aided extraction of chlorogenic acid , nicotine and solanesol in tobacco was investigated . The optimum conditions were : pH4 , 95 % ethanol as solvent , the ratio of material to liquor 1 ∶ 15 , extracting twice at 80 ℃ ( each for 45min ) .

考察了烟草中绿原酸、烟碱和茄尼醇的超声波辅助提取，结果表明：最佳工艺条件为：pH4的95%乙醇作溶剂，料液比1∶15,80℃提取两次，每次45min。