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用水浸、酸浸超声、灰化及高温燃烧水解法分别测定煤烟型氟中毒地区环境样品中不同形态氟化物。测定结果表明,土壤中水溶性氟约占1％;室内空气中气态氟约占总无机氟的54～83％;粮食总氟含量中的70％以上为酸溶性氟化物。
Different forms of fluorides in environmental samples of soot-fluoridated areas were determined by water immersion, acid-leaching ultrasound, ashing and high-temperature combustion hydrolysis respectively. The results show that water-soluble fluorine accounts for about 1% of the soil, gaseous fluorine in the indoor air accounts for 54-83% of the total inorganic fluorine, and more than 70% of the total fluoride content of the food is acid-soluble fluoride.