9KUMAR M S,GALIL M S A,SURESHA M S,et al.A simple spectro- photometric determination of phosphate in sugarcane juices, water and detergent samples[J].Journal of Chemistry,2007,4(4):467-473.
10GANESH S,KHAN F,AHMED M K,et al.Speetrophotometric determi- nation of trace amounts of phosphate in water and soil[J].Water Sci- ence & Technology,2012,66(12):2 653-2 658.