PDF Publication Title:
Text from PDF Page: 352
6.3 6 4 65 66 6.7 6.8 69 6 10 Sulfunc ACId SolutIOn (4%) Add 40 ml ofconc sulfunc aCId to 800 ml ofammOnIa free dIStl1led water, cool and dIlute to 1 lIter Stock SodIUm HydroXide (20%) DIssolve 200 g of sodIUm hydroxIde In 900 ml of ammonIa-free dIStilled water and dIlute to 1 lIter Stock SodIUm PotaSSIUm Tartrate Solution (20%) DIssolve 200 g sodIUm potaSSIUm tartrate In about 800 ml of ammoma-free dIstIlled water and dIlute to I lIter Stock Buffer SolutIon DIssolve 1340 g of sodIUm phosphate, dibaslC (Na2HP04) In about800mlofammOnIafreewater Add20gofsodIUmhydrOXIdeanddIluteto1lIter WorkIng Buffer SolutIOn CombIne the reagents In the stated order, add 250 ml of stock sodIUm potaSSIUm tartrate SolutIon (6 5) to 200 ml ofstock buffer solutIOn (6 6) and mIX Add xx ml sodIUm hydroxIde SolutIon (64) and dIlute to 1 lIter See concentratIOn ranges, Table I, for compOSItIon ofworkIng buffer SodIUm Sahcylate/SodIUm NItroprussIde SolutIon DIssolve 150 g of sodIUm salIcylate and 0 3 g of sodIum nItroprussIde In about 600 ml of ammOnIa free water and dIlute to 1 lIter. SodIUm Hypochlonte SolutIon DIlute 6 0 ml sodIum hypochlonte solutIOn (clorox) to 100 ml WIth ammOnIa free dIstilled water AmmonIum chlonde, stock solutIOn DIssolve 3 819 g NH4CIIn dIstIlled water and bnng tovolumeIna 1lItervolumetncflask 1ml= 10mgNH3-N 7. Procedure DIgestiOn 7 1 72 73 To 20 or 25 ml of sample, add 5 ml of dIgestIon solutIOn (62) and mIX (use a vortex mIxer) Add (4-8) Teflon boIlIng stones (5 3) Too many boIlIng chIps wIll cause the sample to bOIl over WIth Block Digestor In manual mode set low and hIgh temperature at 160°C and preheat UnIt to 160°C Place tubes In digestor and SWItch to automatIc mode Set low temperature timer for 1 hour Reset hIgh temperature to 380°C and set tImer for 2 1/2 hours Cool sample and dIlute to 25 ml With ammOnIa free water 7 4 Colonmetnc AnalySIS 7.5 7 6 77 7 8 Check the level ofall reagent contaIners to ensure an adequate supply Excludmg the salIcylate lme, place all reagent lInes m theIr respectIve contamers, connect the sample probe to the Sampler IV and start the proportIOnmg pump Flush the Sampler IV wash receptacle WIth about 25 ml of40% sulfunc aCId (6 3) When reagents have been pumpmg for at least five mmutes, place the salIcylate lIne m ItS respective contamer and allow the system to equIlIbrate If a preCIpItate forms after the addItIOn of salIcylate, the pH IS too low ImmedIately stop the proportIOnIng pump and flush the colls WIth water usmg a synnge Before restartmg the system, check the concentratIon ofthe sulfunc aCId solutIOns and/or the workIng buffer solution 3512-2PDF Image | Methods for Chemical Analysis of Water and Wastes
PDF Search Title:
Methods for Chemical Analysis of Water and WastesOriginal File Name Searched:
epa600_4_79_020.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)