中国化工贸易
中國化工貿易
중국화공무역
CHINA CHEMICAL TRADE
2013年
4期
293
,共1页
全磷%分光光度法%消煮%磷钼酸喹啉%枸溶性磷
全燐%分光光度法%消煮%燐鉬痠喹啉%枸溶性燐
전린%분광광도법%소자%린목산규람%구용성린
ordinary phosphate%spectrophotography%quinoline phosphomolybdate%dissolved and boiled%itrate-soluble phosphate
本文探讨了有机肥料中在检测全磷所用到的合理方法.用分光光度法测定只适用于有机肥料中P2O5含量中含量不超过6mg的产品.而目前有些有机质肥添加了无机肥的成分(加入磷酸铵、过磷酸钙等).而含量超过6mg,再用分光光度法就无法较准确检测其含量,造成结果偏低.而用磷钼酸喹啉重量法,结合分光光度计法中的样品处理步骤,再用37.5%EDTA溶液提取枸溶性磷,使有效五氧化二磷能合理地检测出来.
本文探討瞭有機肥料中在檢測全燐所用到的閤理方法.用分光光度法測定隻適用于有機肥料中P2O5含量中含量不超過6mg的產品.而目前有些有機質肥添加瞭無機肥的成分(加入燐痠銨、過燐痠鈣等).而含量超過6mg,再用分光光度法就無法較準確檢測其含量,造成結果偏低.而用燐鉬痠喹啉重量法,結閤分光光度計法中的樣品處理步驟,再用37.5%EDTA溶液提取枸溶性燐,使有效五氧化二燐能閤理地檢測齣來.
본문탐토료유궤비료중재검측전린소용도적합리방법.용분광광도법측정지괄용우유궤비료중P2O5함량중함량불초과6mg적산품.이목전유사유궤질비첨가료무궤비적성분(가입린산안、과린산개등).이함량초과6mg,재용분광광도법취무법교준학검측기함량,조성결과편저.이용린목산규람중량법,결합분광광도계법중적양품처리보취,재용37.5%EDTA용액제취구용성린,사유효오양화이린능합리지검측출래.
@@@@This essay is mainly concerned about the reasonable method for the determination of P2O5 in organic manure. Spectrophotography is only suitable to test the organic manure which contains less than 6mg P2O5. At present, elements of inorganic fertilizers, such as ammonium phosphate, ordinary superphosphate and so on, are added to the organic manure. If P2O5 in organic manure is more than 6mg, spectrophotography can not test exactly the content of P2O5 and the data is usually lower. To use 37.5%EDTA solution to distill citrate-soluble phosphate by quinoline phosphomolybdate gravimetric methods combined with sampling procedure of pectrophotography can test the content of P2O5 exactly.
