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A procedure for determining germanium in soil samples using electrothermal atomic absorption spectrometry is discussed. The analyte is leached from the solid sample by the addition of 1ml of concentrated hydrofluoric acid to 10–300mg of sample, and the mixture is then submitted to a 10min ultrasonic treatment. After adding 0.4g boric acid and 3ml concentrated hydrochloric acid, germanium is extracted...
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