1) vacant experiment values
实验空白值
2) blank analysis
空白实验
1.
(Several) new points of view are suggested that estimating the content of sulfate radical in the sample,add certain amount of percipitant barium chloride,properly standardize the barium chloride solution instead of blank analysis,utilize the analytical data of Ca~(2+)、Mg~(2+) in full analysis of brine.
研究了用氯化钡标准溶液代替“氯化钡-氯化镁”混合液测盐(卤)水中硫酸根含量的分析方法,提出了以下新观点:视样品中硫酸根离子浓度而用滴定管滴加氯化钡沉淀剂,将通常采用的“空白实验”改为对氯化钡溶液进行适时标定,巧妙借用盐(卤)水全分析中Ca2+、Mg2+的分析数据等,提高了分析结果的准确性,节约了近50%的分析时间,具有很好的实用性。
2.
Several new points of view are suggested that estimating the content of sulfate radical in the sample, add certain amount of precipitant barium chloride,properly standardize the barium chloride solution instead of blank analysis, utilize the analytical data of Ca2+、Mg2+ in full analysis of brine.
提出了用滴定管滴加氯化钡沉淀剂,并视样品中硫酸根离子浓度而估加;将通常采用的“空白实验”改为对氯化钡溶液进行适时标定;巧妙借用盐(卤)水全分析中Ca2+、Mg2+离子分析数据等几个新的观点,提高了分析结果的准确性,节约了近50%的分析时间,具有很好的实用性。
3) blank test
空白实验
1.
According to GB 11894-1989, when the concentration of the total nitrogen in surface water is determined, the absorbance of the blank test is rather high.
根据国家标准GB11894—1989测定地表水中的总氮时,发现了空白实验的吸光度异常偏高的现象。
2.
The article summarizes the necessarity of quality control of blank test in spectrophotometry; and points out the way how to judge the blank test value which is normal or not in routine water quality monitoring.
论述了分光光度法中进行空白实验质量控制的必要性;提出了日常水质监测中如何判定空白实验值属于正常值的方法。
4) blank testing value of the whole process
全程序空白实验值
1.
As is proved in the experiment,the two improved methods can reduce blank testing value of the whole process.
经实验证明,改进后的两种预处理方法能够降低全程序空白实验值,精密度较好,值得推广。
5) blank value
空白试验值
1.
Through analysis on influence factors in determination of COD_(Cr) blank value, the results show that the quality of H_2SO_4 has a great impact on determinating blank value.
对CODCr测定中空白试验值的影响因素进行了探讨,结果表明,实验中的硫酸质量对测定影响最大。
2.
Some important factors, effecting determination of blank value of ammoniacal nitrogen by reagent colorimetric method.
讨论了影响纳氏试剂比色法测氨氮空白试验值的几个重要因素 ,提出了降低空白试验值的方
6) Blank tesk test control graph
空白试验值控制图
补充资料:空白测量值
分子式:
CAS号:
性质:试剂空白信号的大小。在火焰光谱法中,是指将空白溶液吸喷到火焰中所得到的测量值。
CAS号:
性质:试剂空白信号的大小。在火焰光谱法中,是指将空白溶液吸喷到火焰中所得到的测量值。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条