bids are invited for sodium oxalate crystals - sodium oxalate crystals, 500 gram , anthrone - anthrone, 25 gram , sodium nitropruside (gr) - sodium nitropruside (gr), 100 gram , acetic anhydride - acetic anhydride, 500 ml , papain - papain, 25 gram , sodium nitrite (ar) - sodium nitrite (ar), 500 gram , dpph - dpph, 01 gram , o-anisaldehyde - o-anisaldehyde, 100 gram , ethyl acetate - ethyl acetate, 500 ml , saponine - saponine, 100 gram , sodium phytate - sodium phytate, 25 gram , 22´- pipyridine - 22´- pipyridine, 5 gram , thioglycolic acid (gr) - thioglycolic acid (gr), 100 ml , catechin (hplc grade) - catechin (hplc grade), 1 gram , 2,4,6- tri-2-pyridyl 1,3,5-triazina (ar) - 2,4,6- tri-2-pyridyl 1,3,5-triazina (ar), 1 gram , ammonium iron (iii) sulphate dodecahydrate - ammonium iron (iii) sulphate dodecahydrate, 100 gram , devarda’s alloy - devarda’s alloy, 250 gram , l. ascorbic acid - l. ascorbic acid, 100 gram , metaphosphoric acid - metaphosphoric acid, 500 gram , 2,6, dicloro phenol indephenol sodium bicarbonate - 2,6, dicloro phenol indephenol sodium bicarbonate, 25 gram total quantity : 1