2-Formylbenzenesulfonic acid in Zinc plating baths
INTRODUCTION
Chemical additives are widely used in electroplating technology. This application shows the method of HPLC for determination of 2-formylbenzenesulfonic acid, which is used as additive in Zinc plating baths.
ABSTRACT
HPLC-UV determination of 2-formylbenzenesulfonic acid (2-FBSA), an additive used in zinc plating baths, on an ASTRA® DM 5 µm column, 150 mm × 4.6 mm, part number AST-5810-LK46. Isocratic elution with a mobile phase printed in the note as 50% water : 47% ACN : 3% 1 mL/L formic acid. Flow rate 1 mL/min, column temperature 35 °C, injection volume 20 µL, pressure 800 psi, UV detection at 215 nm and 254 nm. Single analyte: 2-formylbenzenesulfonic acid, CAS No. 91-25-8. The note shows overlaid chromatograms of the standard solution on the ASTRA® DM column with the analyte peak at RT = 5.8 min, a chromatogram of the test solution on the same column recorded at 254 nm in which the marked 2-FBSA peak at about 5.8 min is well separated from earlier matrix peaks, a calibration curve of 2…
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2-Formylbenzenesulfonic acid (2-FBSA)CAS number 91-25-8
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GA PROFI TREX, s.r.o.
Company based in Jablonec nad Nisou, The Czech Republic. Named in APP NOTE 498, where the HPLC method for 2-formylbenzenesulfonic acid in zinc plating baths was developed by Jana Krejčová, M.Sc.
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