Tracking Br− movement through the vadose zone by taking undisturbed core samples and using ion chromatographic techniques based on soil-water extracts is difficult and time consuming. Moreover, the presence of Cl− in the soil may hamper Br− detection due to interference between the two ions. The aim of this investigation was to check whether x-ray fluorescence is an appropriate method for measuring Br concentration in soil samples. A field study was performed comparing Br− chemical analysis in soil-water extracts to total Br in soil using an x-ray fluorescence method. Our results showed a statistically significant functional relationship between the measured concentrations using the two methods. Total Br quantification by x-ray fluorescence was shown to predict the total Br concentration in soil samples with minimum sample preparation (approximately 15 min) and thus the concentration within the vadose zone.