I understand that the sample is important. There are various things you can do. It would be easiest to dilute with water to the appropriate level of acid concentration, but probably some of the elements will then be below the concentration level of quantitative measurements. It is also possible to prepare other, special calibration solutions with the concentration of the acid increased to these 10%. Trace element concentrations can be measured by the method of controlled addition of the element to be measured (standard addition). If the above procedures cannot be applied, and the sample sent for measurement must have the required acid concentration, this acid can be removed by evaporating an aliquot of the solution. Preferably in a vacuum evaporator to prevent the solution from contamination or loss. If you have more time and you do not have an evaporator, you can evaporate a small portion of the solution to near dryness in a desiccator (or other sealed container, even in a foil bag) with silica gel or other drying agent.
By the way. Recording the acid concentration as 10% usually means that it is a concentration of 10% m / m, for example 10 g of HNO3 substance in 100 g of HNO3 solution. On the other hand, 10% V / V is usually understood to be a concentration after dilution with water, e.g. 10 mL of concentrated HNO3 acid (approx. 65% m / m) to a volume of 100 mL of solution. Therefore, it is best to express acid concentrations in the descriptions of analytical methodologies as concentrations expressed in mol / L, then the record is unambiguous.
ZJ
if the question is are there effects the answer is yes there are. - changed evaporation of the metals and decreased lfietime of the graphite furnace e.g.
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