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滴定剂

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The measurement of carboxyl end group content in PBT was discussed with an automatic potentiometric titrator.

采用全自动电位滴定仪测定PBT切片的端羧基含量,对称样量、溶剂的配比、滴定剂的浓度等进行了正交优化。

Titrate with 0.01 N sodium thiosulfate VS, adding the titrant slowly with continuous shaking, until the yellow color is almost discharged.

滴定0.01 n硫代硫酸钠,加入滴定剂慢慢连续摇头,直到黄色的。

The method is free of volumetric measurements and independent of titration end point.

该方法免去了直接读取滴定剂的体积,且不需确定滴定终点。

The concentration of alginic sodium diester in the range of 2~8 mg/L obeys Beer′s law and the linear equation is A=-0.0639C_ASD+1.507, r=0.9993. The detection limit is 0.065 mg/L.

张淑敏等[3]报道了以四苯硼钠为滴定剂的示波极谱滴定法间接测定ASD的方法,该法精密度等较好,但操作烦琐。

Using EDTA as titratant,murexide as indicator,sodium tartrate ammonium fluoride and sodium thiosulfate as masking agent, nickle concentration was determined in ammonic medium.

以EDTA为滴定剂,紫脲酸铵为指示剂,NH4F、酒石酸钾钠、Na2S2O3为掩蔽剂,在氨性介质中测定镍的浓度;在pH值为8.0的氨-氯化铵缓冲液中,采用滴定比色法测得钴的浓度。

The either titrate in titration process is nodded, the affiliation of the chroma of the Ag+ in solution and titration agent bulk can determine by the potential of two electrode the value is obtained at the same time, thereby applicable is multivariate and corrective the content that the law gets ion of the avery kind of in mixing haloid ion by corresponding titration curve.

在滴定过程中的任一滴定点,溶液中Ag+的浓度和滴定剂的加入体积可由两个电极的电位测定值同时获得,从而可应用多元校正法由相应的滴定曲线求得混合卤素离子中每一种离子的含量。

A method for the determination of water soluble chloride content in iron ore by potentiometric titration was studied.

以2g/L硫酸钾为溶解试剂,硝酸银为滴定剂,电位滴定法测定铁矿石中的水溶氯,通过电极电位-浓度二次微商滴定曲线,计算二次微商等于零时对应的V为滴定终点,可省去绘制E-V曲线或ΔE/ΔV-V一次微商曲线作图带来的麻烦。

The titrant is a mixture of EDTA and sodium fluoride, both mercury film electrode and fluorinion selective electrode are inserted in the titration solution. In a process of titration, both the added volume of titrant and the concentration of mercury ion at each titration point can be obtained simultaneously from the potentials of two electrodes, and then the concentration of each component in the alloy can be obtained from the titration curves by multivariate calibration.

用ED-TA与氟化钠的混合溶液作为滴定剂,被滴定液中同时插入了汞膜电极和氟离子选择电极,在滴定过程中的任一滴定点,溶液中汞离子的浓度和滴定剂的加入体积可由两个电极的电位测定值同时获得,从而可应用多元校正法由相应的滴定曲线求得混合金属中每一种组分的含量。

The 2 g/L solution of potassium sulfate was employed for the dissolving of sample, and silver nitrate was used as titrant.

以2g/L 硫酸钾为溶解试剂,硝酸银为滴定剂,电位滴定法测定铁矿石中的水溶氯,通过电极电位-浓度二次微商滴定曲线,计算二次微商等于零时对应的V为滴定终点,可省去绘制E-V曲线或ΔE/ΔV-V一次微商曲线作图带来的麻烦。

The titrator adopts the peristaltic pump to drive the titrant, and adopts the optical switch to detect the number of drip.

该仪器采用蠕动泵驱动滴定剂,用光电开关检测滴定剂滴数,根据滴数计算所用滴定剂的体积。

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