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Analysis of thallium in gold plating solution (flame method)
SUBJECT: Analysis of Tl in gold plating solution
INSTRUMENT: MODEL ZA3000 (ZA3300) POLARIZED ZEEMAN FLAME ATOMIC ABSORPTION SPECTROPHOTOMETER
Model ZA3000 Atomic Absorption Spectrophotometer
Because of its excellent corrosion resistance, conductivity
and other properties, gold plating is frequently used in electronics and mobile
telephones, as well as in jewelry, etc. Thallium (Tl) is sometimes added to
gold plating solution as a crystal regulator to obtain stable precipitates in
the solution for bonding use. Stable quality can be maintained by controlling
the Tl concentration in the plating solution. ZA3000, which features the
polarized Zeeman background correction method, can make precise quantitative
determinations that correct for background without being affected by materials
coexisting in the plating solution.