【求助】乙磷铝检测方法

高难度啊，查不到方法，不过查出来是有机膦类杀菌剂……不知道液相能做不能

应助达人

乙磷铝肯定要用单独法,应该不会太简单的,有几种农药大家公认难检.

它的性质决定了它就是难检,很简单的方法可能性不大.毕竟又要提取还要净化的.

Quantitative analysis of organic phosphonates, phosphonate,and other inorganic anion in plants and soil by using high-performance ion chromatography
Quantitative analysis of organic phosphonates, phosphonate,and other inorganic anion in plants and soil by using high-performance ion chromatography

Determination of fosetyl-aluminium in the presence of folpet
Milinovic, J.; Lazarev, S.; Stojanovic, D.
Pesticides and Phytomedicine
2006 v. 21(2) p. 161-165

A modified spectrophotometric method for determination of fosetyl-aluminium in the presence of folper was developed. The method is based on melting samples in heating furnace at a temperature of 800-900 deg C. The residues obtained were oxidized, and phosphonate from fosetyl-aluminium was converted into phosphate by adding solutions of nitric acid and hydrogen peroxide. Phosphate was determined spectrophotometrically at 440 nm with the molibdate-vanadate reagent. Based on phosphate content (as P2O5), fosetyl-aliminium content can be determined, taking into account that three moles of P2O5 are obtained from two moles of fosetyl-aluminium. Based on the values of relative standard deviation and recovery, it may be concluded that the proposed method is relatively reproducible and accurate.

Potential of liquid chromatography-atmospheric pressure chemical ionisation tandem mass spectrometry for determination of fosetyl-aluminium residues in dried hops.
Poustka, J., Hajšlová, J., Holadová, K., Nováková, K.
Czech Journal of Food Sciences, 2004 (Vol. 22) (No. 1) 24-28
Abstract:
New analytical procedure for the determination of fosetyl-aluminium in hop cones (also called "hops") was developed. Liquid chromatography-atmospheric pressure chemical ionization tandem mass spectrometry (LC-APCI-MS/MS) allowed a highly selective determination of this fungicide which facilitated the sample preparation. The sufficiently low detection limit (1 mg/kg of dried hops) with the acceptable method performance characteristics (RSD 9%, recovery 76% - at the level of 10 mg/kg) complies with the need to inspect the observance of maximal residual limit of 100 mg/kg. The application of LC-MS technique thus provided an effective way of fosetyl-aluminium determination in the complex hops matrix.

消解后测磷和铝的量，就可以推论结构！！不过是高含量的方法，容量法滴定或者是分光光度法！！