ph indicator

The free fat acid results from edible oil can react with pH indicator contained in test strip.

食用油酸败所产生的游离脂肪酸与试纸上的pH指示剂发生反应，试纸的颜色变化反映了食用油的酸价变化。

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It uses distilled water and alcohol to refine water soluble acid and alkali of sample and then test the extractive with PH indicator.

用蒸馏水或乙醇水溶液抽提试样中的水溶性酸或碱，然后用酸度计或指示剂对抽提物进行测定。

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And therefore the rapid quarantine test for pinewood nematode, that through the colour reaction made on felled wood by use of the suitable pH indicator was carried, was reliable and its reliability was over 95%.

结果表明，黑松病、健木pH值的差异极显著，因此，通过适当指示剂在伐倒木上的颜色反应进行松材线虫病的检验是可靠的，其可靠性可达95%以上。

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Thus, the effluent pH value can be an indicator for the type and the degree of biochemical reaction in rapid biological filter.

可以通过生物快滤池进出水pH值的变化情况来判断滤池内生化反应类型和COD或氨氮指标的去除效果。

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The pH value is 8.5 by pH indicator strips.

用pH试纸测得泥浆pH为8.5.

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It is firstly def ined as minus logarithm PH indicator.

首先定义为氢离子浓度负对数.

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Assay of atropine sulfate by the pH indicator absorbance ratio method

pH指示剂吸收值比值法测定硫酸阿托品

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Available acidity is analyzed by pH indicator paper, standard colorimetry or acidimeter;

有机酸可采用比色法、纸上层析和气相色谱进行分析。

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PH Variation as Indicator for the Reaction between Arsenite and Absorbents

几种吸附剂吸附亚砷酸根离子过程中pH值的动态变化

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The pH indicator absorbance ratio method was applied satisfactorily to the quantitative determination of metronidazole. The RSD was within 0.2%.

以0.1%桔黄Ⅳ为指示剂，采用pH指示剂吸收度比值法测定甲硝唑的含量，RSD小于0.2%，结果满意。

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Methods pH indicator absorbance ratio method was used. Absorbance values at lengths of 374 nm and 494 nm were determined.

方法采用pH指示剂吸收值比值法，在波长374nm和494nm处测定吸收度。

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Tianda Company manufactures primarily pH indicator and conductivity meter, and gained the manufacture permit several years ago, with excellent quality and is worthy of trust.

本公司主要生产酸度计、电导率仪等计量仪器，取得了生产许可证多年，产品卓越、信誉可靠。

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Metronidazole was determined quantitatively by pH indicator absorbance ratio method.

采用pH指示剂吸收比值法测定甲硝唑的含量，以麝香草酚蓝为指示剂，432nm和544nm为测定波长。

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Objective To Study the better one between PH indicator absorptance method and Ag ration method to determine content of barbital sodium.

目的为探讨PH指示剂吸收度比值法和银量法测定巴比妥钠含量的优劣。

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Conclusion It is a practical method to determine content of Barbital Sodium by PH Indicator Absorptance Method.

结论PH指示剂吸收度比值测定巴比妥钠的含量是一种切实可行的方法。

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Determination of LAEVODOPA by the method of pH indicator absorbance ratio

pH指示剂吸收度比值法测定左旋多巴

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9.8 The pH value is 8.5 by pH indicator strips.

用ph试纸测得泥浆ph为8.5。

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In this paper two principal environmental factors ( the pH value and biological indicator), which are the keys in indicating water quality, are proposed; and the general principles and protocols of controlling water quality are discussed preliminarily.

本文总结出两种简便的水质检测指标：pH值和水质指示生物，并对水质控制的一般原理及方法进行了初步的探讨。

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Progress of application of pH indicator absorbance ratio method in drug analysis

吸光度比法在国内药物分析上应用的进展

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The study shows that Cu's adsorption of cyanotic mud, the same soils produced by the different mother material, is depended on organic matter content of the soil, while the pH indicator will not effect the Cu's adsorption of this type of soil.

对于不同母质发育的相同土壤&青紫泥，研究发现，该类土壤对Cu的吸附与土壤有机质含量呈正相关，而土壤pH对该类土壤对Cu的吸附影响较小；

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The pH indicator absorbance ratio method was applied to the quantitative determination of clotrimazole.

本文报道pH指示剂吸收度比值法测定克霉唑的含量。该法采用指示剂为稀溴酚蓝，测定波长433nm和599nm；

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The paper studied sulphate resistance of concrete by drying-wetting in differ PH indicator salt solution and in water.

本文采用水中干湿循环、两种不同浓度的硫酸盐溶液中干湿循环的实验方法来研究混凝土抗硫酸盐侵蚀性。

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Determination of Penciclovir Sodium by pH-Indicator Absorbance Ratio Method

pH指示剂吸光度比法测定喷昔洛韦钠原料药含量

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With sodium succinate as carbon source and bromothymol blue ( BTB) as pH indicator, 20 BTB agar plate positive strains were isolated, from which four of them were identified as aerobic denitrifiers.

利用琥珀酸钠作为碳源，溴百里酚蓝（BTB）作为pH指示剂，共筛选得到20株BTB琼脂平板阳性菌。通过反硝化性能测定，复筛得到4株好氧反硝化细菌。

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