PDF Publication Title:
Text from PDF Page: 116
Analysis Procedure 1 For analysIs procedure and calculation, see "DIrect AspIratIOn", part 9 1 of the AtomIC AbsorptIOn Methods sectIOn of thIS manual Interferences 1 The use of a mtrous oXIde-acetylene flame vIrtually ehmmates chemlCalmterference, however, banum IS easl1y IOmzed m thIS flame and potassmm must be added (1000 mg/1) to standards and samples ahke to control thIS effect 2 Ifthe mtrous oXIde flame IS not aval1able and acetylene-aIr IS used, phosphate, s111con and alummum w111 severely depress the banum absorbance Thts may be overcome by the addItIon of2ooo mg/1lanthanum Notes 1 Data to be entered mto STORET must be reported as ug/1 2 For concentratIOns ofbanum below 0 2 mg/1, the furnace procedure (Method 208 2) IS recommended 3 For qUalIty control reqmrements and optIOnal recommendatIons for use m dnnkmg water analyses, see part 10 ofthe AtomIC AbsorptIOn Methods section ofthIS manual PreciSiOn and Accuracy 1 In a smgle laboratory (EMSL), usmg a mIxed mdustnal-domestic waste eftluent at concentratIOns of 040 and 20 mg Ba/1, the standard deVIatIOns were ±O043 and ±O 13, respectIvely Recovereis at these levels were 94% and 113%, respectIvely 2 In a round-robm study reported by Standard Methods (13th EdItion, p215, method 129A, 1971), three synthetIc samples contammg banum were analyzed by 13 laboratones At concentratIOns of 500, 1000 and 5000 ug Ba/1, the reported standard deVIations were ±50, ±89 and ±185 ug, respectIvely The relatIve error at these concentratIOns was 8 6%,2 7% and 1 4%, respectively 208 1-2PDF 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)