DETERMINATION OF OIL PRODUCTS IN THE SOIL BY NIR SPECTROSCOPY: 8. ASSESSMENT OF THE EFFECT OF SOIL PREPARATION
It was shown that the NIR analyzer could be calibrated for the determination of oil products in the soil using soil samples prepared by manual trituration, grinding in a hand mortar, or milled in a mill. Special ball mills (cryomills) should be used for milling soil samples containing volatile oil products. Recommendations were developed for sample preparation to the determination of oil products.