These insoluble compounds phosphatic materials and organic acids are then removed by filtering 磷酸鹽原料和有機酸通過過濾被清除。
Effects of pig slurry and phosphatic fertilizer on organic - p fractions and their availabilities 豬糞和磷肥對石灰性土壤有機磷組分及有效性的影響
The total n in enviromental samples is commonly determined by k2s2o8 - spectrophotometric method , and the total p is commonly determined by phosphatic molybdenum spectrophotometry 摘要環(huán)境樣品總氮的測定常用過硫酸鉀氧化紫外分光光度法測定,而總磷一般為磷鋁藍分光光度法。