Determination of formic and acetic acids in indoor air

A method for the determination of formic and acetic acids was realized and validated in this work. The separation of the two organic acids was optimized in 10 minutes on an IonPac AS-18 column coupled with precolumns, isocratic mode, 0.250ml/min flow and a mobile phase consisting in KOH 10mM. The quantification of the interested compounds was done by external standard. Then, the method was validated by analyzing selectivity, linearity, limit of detection, limit of quantification, precision and accuracy. The validated method can be described as a simple and also low cost method for the determination of formic and acetic acid in air samplers.