Equivalence point 是滴定曲线上的一点，在这一点所用的标准溶液的量（V x M)恰好等于被分析物质的（当）量。End point 指的是滴定曲线上的一点，在这一点指示剂发生颜色变化。这一点可能先于equivalence point,也可能晚于equivalencepoint。理想的情况是这两点重复。
Lyman's 30-year-old seawater titration is sufficiently precise to reveal a 4 micromolar discrepancy (theoretically supported) between observed end point and zero-alkalinity equivalence point. Accurate measure of alkalinity requires correction for the difference, either by assuming the constancy of ...
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the amounts of the o reactants (acid and alkali) are said tobe chemically equivalent. The exact value of the equivalence point cannot be found in a titration butthe end point is an estimation of the equivalence point. simply speaking the endpoint is the point at which the titra...
1.The determination of potentiometrictitration end-pointsin analytical chemistry filed by using the mathematic method has been got more and more attention with the rapid development of computer technology.在分析化学领域中 ,利用数学判断法确定滴定终点 ,随着计算机的日益普及而备受关注。
Science Chemistry Titration Why is the titration curve nearly flat at the end of the titration, well past the equivalence point?Question:Why is the titration curve nearly flat at the end of the titration, well past the equivalence point?
302]. Thomson found the ratio of mass to charge using the formula for the Lorentz force, according to which the electron was already assumed to be a point mass. Without independent measurement of the mass, he then could only postulate the existence of particles. In this respect, his ...
cerevisiae –Stemp and Hoffman [43] observed that the quenching constant, kq = kf + ko, continued to increase past the point where CcP should be saturated with Cc if the binding was 1:1. In the case of fCc, it was found that the intermediate species I did not accumulate until the ...
A compilation of proxy records across the ETE shows that the timing of early d13C excursions before the ETE in the Newark-Hartford, St Audrie's bay, Stenlille and Kennecott Point records coincide with or just predate the newly discovered earliest CAMP magmatism (Fig. 3). Also, seismite ...
A compilation of proxy records across the ETE shows that the timing of early d13C excursions before the ETE in the Newark-Hartford, St Audrie's bay, Stenlille and Kennecott Point records coincide with or just predate the newly discovered earliest CAMP magmatism (Fig. 3). Also, seismite ...