Studies of gold, platinum and palladium indicating electrodes in strongly oxidizing aqueous solutions

✍ Scribed by J.K. Lee; R.N. Adams; C.E. Bricker

• Publisher: Elsevier Science
• Year: 1957
• Tongue: English
• Weight: 666 KB
• Volume: 17
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/s0003-2670(00)87037-3

✦ Synopsis

Fast Grcy RA dye has proved to bc n scnsltlvc colorlmctrlc reagent for mlcrodctcrmmation of bismuth By its atd it IS posslblc to dctermlnc with precision conccntratlons bctwccn o. I and I p p m. rn the prcxncc of some other catlons and antons, with nscnsltlvc photomctcr or a Beckman spcctrophotomctcr at a wavclcngth of 570 rnp i\mong the lntcrfcrtng clcmcnts arc cattons of Cu. Zr. NI, Cd, V and Icrrrc Iron The latter clcmcnt howcvcr, can be masked, to a great cutcnt, by reduction with ascorbic acid RESUME Lc colorant ,.Fast Crcy Rh" pent etrc utlllsd commc rbnct,f colorlmctrcquc ycnslblc pour Ic n-ucrodosage du bismuth I1 pcrmct dc doscr .tvcc pr6clslon tics conccntrattons comprises cntlc 0 1 ct 1 p p m , en prCscncc dc quclqucs autrcs cattons ct anlons au moycn d'un photornhtrc scnslblc ou d'un apcctrophotomhtrc Ekckmnn, 3. unc longucur d'ontlc dc 570 rnp Lcs ions dcs Wmcnts sulvants. Cu. Zr. NI. Cd, V ct Pc(1 II) yhcnt Lc fcr(II1) ccpcndant pcut ittrc niasqub par r6duction au moycn dC l'acldc ;lsCcJrblclUC %US,~f~l1SS1~.~SSUh'CI Dcr FnrlJstoff Fast Grcy Rr\ hat such al* cln cmpf~ndhchca kolorrmctrlschcs Rc,lgcnL fur the Mlkrobcstlmmung von \Vlsmuth crwlcbcn Mlt xclncr Hlltc k6nnen Konzcntratloncn \on o I untl I p p ni In Gcgcnw.,rt clrilgcr andcrcr liatconcn und Anloncn mit clncm cm1Jf~ntlltchen Photomctcr otlcr clncm ijccknran-Spcktrophotomctcr bc~'1 ctncr \VcllcnlSngc van 570 m/r gcniru bccstimmtwcrdcn Zu den btbrcndcn Elcmcntcn gchtircn Cu. Zr, ~VI. Cd. V untl I;c(L II) I)ab Icthcrc knnn abcr grdrstcntells durch Rctluktlon nrlt AscorLlnsaurc gctarnt wcrdcn REFERlZNClZS Clicnr , 27 (1055) 24