Automatic titration by stepwise addition of equal volumes of titrant. Part II. An automatic titration system

The Analyst ◽  
1970 ◽  
Vol 95 (1132) ◽  
pp. 652 ◽  
Author(s):  
Axel Johansson ◽  
Lennart Pehrsson
1977 ◽  
Vol 54 (9) ◽  
pp. 367-370 ◽  
Author(s):  
Shintaro Fudano ◽  
Takashi Kusuyama ◽  
Kazuaki Yashima ◽  
Sakiko Terai ◽  
Kazuo Konishi

1981 ◽  
Vol 46 (2) ◽  
pp. 368-376 ◽  
Author(s):  
Josef Veselý

Titration of sulphates with lead perchlorate employing lead ion selective electrode indication was studied using additions of various organic solvents at different pH' and ionic strength values. As the optimum emerged systems with 60-70% 1,4-dioxane, pH' 5.3-5.6. After dehydration with sodium hydroxide, dioxane must be freed from the electrode surface-oxidizing impurities by their reduction with sodium metal and subsequent distillation. The method was applied to determination of sulphates in mountain spring waters. Units of ppm can be determined; the limit of determination, however, depends considerably on the content of dioxane, total salt content in the sample, and speed of the semi-automatic titration. Lead can be determined with EDTA in concentrations down to c(Pb2+) = 5 . 10-6 mol l-1.


1954 ◽  
Vol 3 (6) ◽  
pp. 478-481 ◽  
Author(s):  
SEISHI TAKAGI ◽  
YOSHIHIRO MAEKAWA
Keyword(s):  

1990 ◽  
Vol 4 (6) ◽  
pp. 142
Author(s):  
Piotr Bednarski ◽  
Francesco Siclari ◽  
Stefanos Demertzis ◽  
Angelika Voigt ◽  
Günter Lau

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