| 1. | Examples are litmus and phenolphthalein 例如石蕊和酚酞。 |
| 2. | Chemical analysis of organic phthalates . determination of acidity to phenolphthalein 有机酞酸盐的化学分析.酚酞酸度的测定 |
| 3. | The preparation of phenolphthalein poly ether sulfone membrane and its corresponding properties 酚酞型聚醚砜膜的制备与性能研究 |
| 4. | Effects of proton irradiation on the tribological properties of phenolphthalein poly ether sulfone 质子辐照对酚酞聚芳醚砜摩擦学性能的影响 |
| 5. | Testing methods for phthalic esters - part 2 : determination of acidity to phenolphthalein - titrimetric method 邻苯二甲酸脂的试验方法.第2部分:酚酞的酸度测定.滴定法 |
| 6. | Testing of ethanol for industrial use - method for detection of alkalinity or determination of acidity to phenolphthalein 工业用乙醇试验.第1部分:碱度检测或对酚酞酸度的测定方法 |
| 7. | Chemical analysis of maleic and phtahlic anhydrides . estimate of concentration by determination of total acidity with phthenolphthalein 马来酐和酞酐的化学分析.用测定酚酞总酸度法评估浓度 |
| 8. | The effect of hexadecy pyridine choride on the dissociation constants of thymol blue bromide , cresol red , o - ckesolphthalein and thymol blue , as well as their the colour - changing ranges were studied by spectrophotometry 探讨了表面活性剂氯化十六烷基吡啶形成的胶束对溴百里香酚蓝、甲酚红、邻甲苯酚酞和百里香酚蓝离解反应的离解常数的影响,同时,也研究了该表面活性剂对上述四种酸碱指示剂变色范围的影响。 |
| 9. | The effect of hexadecy pyridine choride on the dissociation constants of thymol blue bromide , cresol red , o - ckesolphthalein and thymol blue , as well as their the colour - changing ranges were studied by spectrophotometry 摘要探讨了表面活性剂氯化十六烷基吡啶形成的胶束对溴百里香酚蓝、甲酚红、邻甲苯酚酞和百里香酚蓝离解反应的离解常数的影响,同时,也研究了该表面活性剂对上述四种酸碱指示剂变色范围的影响。 |
| 10. | Then , the half - carbonated zone ( transition zone ) phenomenon is mentioned and verified by way of using xrd & tg , thus giving contradictor of the existence between the half - carbonated zone and the premise of phenolphthalein test method - no existing obvious transition zone between carbonated area and non - carbonated area 试验结果证明:在混凝土碳化区和未碳化区之间存在着部分碳化区,而这一中间过渡区域的存在可能使得目前普遍采用的酚酞( phenolphthalein )试剂测定碳化深度的方法易产生误差。 |