bids are invited for 1 silver nitrate emsure acs 2 folin ciocalteu suitable for determination of total protein by lowry method 3 zinc nitrate hexahydrate purum crystallized 4 ammonium solution puriss 30-33% nh3 in h2o 5 kaolin clay 6 guar gum almost white to pale yellowish max 13% max 2% 7 sodium acetate anhydrous for analysis emsure acs reag ph eur 8 ethanol 9 1, 1-diphenyl-2-picrylhydrazyl radical, 2, 2-diphenyl-1-picrylhydrazyl 10 nutrient agar 11 sodium hydroxide flakes, emplura 12 tannic acid gallotannin acs reagent 13 rutin trihydrate quercetin-3-rutinoside trihydrate, analytical standard 14 ethyl acetate 7.9% solubility with water ( 20c ) is clear, colourless acs reagent, 99.5% 15 n-hexane density ( g / ml ) 20c 0.658-0.659 95% 16 acetone ar / acs 99.5% ( meets analytical specification of bp, usp, ph, eur ) 17 solution for leishman stain 18 xylene acs reagent, 98.5% xylenes + ethylbenzene basis 19 toluene puriss. p.a., acs reagent 99% 20 carrageenan ( kappa ) refined ex. eucheuma cottonii, max.12% , max. 40%, 10 - 40 mpas 21 albumin bovine fraction v crystalline compound 6.0 - 7.0 22 n, n-dimethylformamidepuriss. p.a., acs reagent, reag. ph. eur 99.8% 23 nitric acid 4m ( 4n ) volumetric solution in h2 o in accordance with nist 24 chitosan ( low mw ) extrapure, 10-150m.pas, 90% da 25 thymine 2, 4-dihydroxy-5-methylpyrimidine, 98% 26 potassium hydroxide deliuquescent hygroscopic pellets 27 sodium sulfite ( iodometric ) 97.0% 28 potassium hydroxide pellets for analysis ( acidimetric ) 85.0% 29 cellulose microcrystalline, powder 30 ( methyl sulfoxide ) -d6-d6 99.5 atom % d 31 2, 2, 6, 6-tetramethylpiperidine 1-oxyl, 99.9% 32 azbts- ( nh4 ) 2, diammonium 2, 2-azimo-bis ( 3-ethylbenzothiazoline-6-sulfonic acid ) diammonium salt 33 sulphuric acid for the determination of nitrogen, 97.0% 34 cupric nitrate trihydrate puriss. p.a., 99-104% 35 potassium acetate anhydrous acs reagent 99 percent 36 sodium potassium tartrate tetrahydrate ( perchloric acid titration ) 37 kanamycin sulphate for molecular biology 38 3, 5-dinitro salicylic acid 39 cupric sulphate puriss., suitable for, meets analytical specification 99% 40 alpha amylase 41 phenol hydroxybenzene for molecular biology 42 culture plate, 96 well 43 dialysis membrane av. flat width - 25.27 mm, capacity approx - 1.99 ml / cm 44 falcon tube, 50 ml 45 nmr tubes 5mm 46 magnetic stirrer bar 47 sodium bromide 99.99% trace metals basis ph ( 5% aq. solution ) 5.0 - 7.0 48 glass vials 49 filter paper 50 micropipette with unical uair technology, 100-1000ul 51 micropipette with unical uair technology, 20-200ul 52 quartz cuvettes 1ml total quantity : 40345