Laboratory Products
Determination of Aluminium and Zirconium in Antiperspirants
Jul 29 2022
Antiperspirants contain zirconium aluminium chlorohydrates as active ingredients. Currently, the zirconium aluminium glycine (ZAG) complex is mainly used because it has been shown to be more effective. To evaluate the product quality, it is necessary to control the amount of both aluminium and zirconium in the ZAG complex. This determination can be done by complexometric titrations under different conditions according to the US Pharmacopeia (USP).
USP currently describes the assay of zirconium aluminium chlorohydrate complexes by two manual complexometric titrations after a laborious sample preparation procedure (digestion). This Application Note from Metrohm presents a complementary method that allows a consecutive determination after the sample preparation (digestion) of both metal ions in one beaker with an optical sensor and xylenol orange as an indicator.
Digital Edition
Lab Asia 31.2 April 2024
April 2024
In This Edition Chromatography Articles - Approaches to troubleshooting an SPE method for the analysis of oligonucleotides (pt i) - High-precision liquid flow processes demand full fluidic c...
View all digital editions
Events
May 22 2024 Basel, Switzerland
Scientific Laboratory Show & Conference 2024
May 22 2024 Nottingham, UK
May 23 2024 Beijing, China
May 28 2024 Tel Aviv, Israel
May 28 2024 Leuven, Belgium