I need to determine SO4 and Chlorides in synthetically prepared water from Magnesium Sulfate and Calcium Chloride/Sodium Chloride. would any one suggest of the equipment for determination of anions. So that i would be able to get best results?
Sulphate can be determined by volumetric method and Cl by Mohr method. Detailed procedure are well known. However Digital SO4 and Cl meters are available in Market. On line information available.
Both GC-MS and HPLC-MS are not suitable for the detection of sulphate and chlorine anions. These chromatographical methods are typically used for the analysis of organic compounds in low concentrations. As already mentioned in the reactions above, a multitude of analytical methods can be used for determination of anions. However, most of these methods are only suitable for quite high concentrations (mg/l or higher). For more accurate determinations of different anions at very low concentration levels (µg/l - ng/l) on ion chromatography
In our work, we have followed the titrimetric or volumetric method for the measurement of Cl (mg/L) and spectrophotometric method for the determination of SO4 (mg/L).
ion chromatography is the best to determine . spectrophotometer method is also good .
1- For chloride ion determination , the potentiometric methods is suitable.
2- For sulphate , it can be determined using turbidimetric method, which is fast , simple and senstive
You may want to check this RG discussion ― on the titration of sulfate: https://www.researchgate.net/post/How_can_I_easily_measure_sulfate_concentration_in_a_solution
Both Chloride and sulfate ions can be estimated by coductometric titration which is easy and rapid ,since chloride ion titrated with silver nitrate and sulfate ion titrated with barium chloride in aqueous solutions.
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