Abstract
Flow injection microsampling dilution was combined with the zone penetration technique to produce an on-line dilution system capable of achieving 27,000-fold dilutions in flame atomic absorption spectrometric determinations with a sampling frequency of 45/h and a precision of better than 2% r.s.d. Readouts were made at the valleys between two sequentially injected micro-sample zones in the microliter range which penetrated each other. The method was applied to the determination of several grams per liter of magnesium in brine solutions without further dilutions.
Published Version
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