酚酞

Any of vari substances, such as litmus or phenolphthalein, that indicate the presence, absence, or concentration of another substance or the degree of reaction between two or more substances by means of a characteristic change, especially in color.

指示剂 任何一种具有下列功能的物质，即能通过自身性质的变化，特别是颜色的变化来表明另一种物质的存在、消失或聚集，或可以表明两种以上的物质相互反应的程度；例如石蕊、酚酞

Chemistry Any of various substances, such as litmus or phenolphthalein, that indicate the presence, absence, or concentration of another substance or the degree of reaction between two or more substances by means of a characteristic change, especially in color.

指示剂：任何一种具有下列功能的物质，即能通过自身性质的变化，特别是颜色的变化来表明另一种物质的存在、消失或聚集，或可以表明两种以上的物质相互反应的程度；例如石蕊、酚酞

Black's not even on the chart.- Bad phenolphthalein?

试纸上竟然没有黑色-酚酞坏了？

4 Add 6 to 8 drops of the phenolphthalein indicator solution to the bottles and titrate to a pink end point with 0.5 N NaOH solution.

10.1.4 在瓶子里加入6到8滴的酚酞指示剂溶液来作为滴定0.5 mol/l 的NaOH 溶液的指示剂，直到溶液变成粉红色

Phenolphthalein, together with borax,is used to test for saccharide derivatives,e.g.

酚酞与硼砂一起用于检测糖类衍生物，如甘油。

The main products willow green brand phenolphthalein sells well in Europe, beautiful, Southeast Asia etc, Its production process is controlled strictly according to GMP rules.

主产品柳青牌酚酞畅销欧、美、东南亚等国家和地区，其生产过程按照GMP规程严格控制。

Results: The RSD of retention time of the target components was not more than 0.48%, and the limits of detection were within 0.1~0.9 ng. Caffeine, phenolphthalein and sibutramine were detected in 20 of the total 29 samples.

结果：各被测组分保留时间的RSD不超过0.48%(n=7)；最低检测限为0.1~1.9ng；在29批供试样品的20批中检测到咖啡因、酚酞和西布曲明。

Has founded the factory for over 20 years, our company has already established long and steady stock relation with a lot of domestic and international pharmacy, food, chemical industry, scientific research enterprise, According to the green phenolphthalein reliable product quality of the willow, good prestige has gained the masses of users' trust.

建厂二十多年来，我公司已同国内外多个制药、食品、化工、科研企业建立了长期稳定的供货关系，凭着柳青酚酞可靠的产品质量，良好的信誉赢得了广大用户的信任。

The present work describes a new method for trace Co preconcentration and separation using microcrystalline phenolphthalein as an adsorbent coupled with the determination of spectrophotometry.

建立了一种以微晶酚酞作为固态吸附剂对样品中痕量的Co分离富集的新方法，富集后的co可直接用光度法测定。

Several experiments were desighned to reveeal the reaction mechanism of phenolphthalein during its condensating with DCDPS in presence of potassium carbonate.

利用13C-NMR方法研究了弱碱K2CO3存在下酚酞成盐反应及其与活性双卤砜亲核缩聚反应过程中的结构特征。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。