1. Sandel FB, West TS (1969) Pure Appl Chem 18:427–436
2. Harris DC (2010) Quantitative chemical analysis, 7th edn. WH Freeman, New York
3. Harris DC (2002) Lehrbuch der quantitativen Analyse. Springer, Berlin
4. Christian GD (2004) Analytical Chemistry, 6th edn, Wiley, London
5. Mendham J, Denney RC, Barnes JD, Thomas MJK (2000) Vogel’s textbook of quantitative inorganic analysis, 6th edn, Prentice Hall, Englewood Cliffs