bids are invited for analysis emparta acs 500 gm , di sodium oxalate purified 500 gms , high performance ammonia electrode filling solution , murexide indicator ammonium purpurate , sodium nitrite emplura 500 gms , orion nitrate isa ionic strength adjuster solution 475 ml thermo orion , orion ammonia isa ionic strength adjuster solution 475 ml thermo orion , lauryl tryptose broth m080 500g hemidia 500 g , e c broth m127 500g hemidia 500 g , extran ma 02 neutral solution for cleaning laboratory glassware and instruments , curcumin for synthesis 10 gm , aluminum sulphate , glacial acetic acid , sodium chloride , potassium iodid , ammonia solution , hydrochloric acid , ammonium sulphate , ortho phosphoric acid , tisab iii concentrated 475 ml for fluoride , ammonium chloride , whatman qualitative filter paper pore size 0.45micro meter nylon 47 mm 100 nos , whatman qualitative filter paper grade no 1 pore size 11micro meter , whatman qualitative filter paper grade no 2 , whatman qualitative filter paper sheet grade no 1 , buffer solutions total quantity : 167