Spectrophotometric determination of molybdenum after separation by the adsorption of its trifluoroethylxanthate on naphthalene
Molybdenum reacts with potassium trifluoroethy xanthate to form a water-insoluble complex in the acid concentration range 0.1-3M, p H 1.0-3.5. This complex is easily adsorbed onto microcrystalline naphthalene from an acetone solution and adsorbs in the range 360-370 nm. Beer's law is obeyed ove...
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| Veröffentlicht in: | Analyst (London) 1986-10, Vol.111 (10), p.1171-1174 |
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| container_title | Analyst (London) |
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| creator | FARID HUSSAIN, M MOHAN KATYAL BAL KRISHAN PURI MASATADA SATAKE |
| description | Molybdenum reacts with potassium trifluoroethy xanthate to form a water-insoluble complex in the acid concentration range 0.1-3M, p H 1.0-3.5. This complex is easily adsorbed onto microcrystalline naphthalene from an acetone solution and adsorbs in the range 360-370 nm. Beer's law is obeyed over the concentration range 5.0-75.0 mu g of Mo in 10 ml of chloroform solution. The molar adsorptivity and Sandell sensitivity are 1.041 x 10 exp 4 l mol exp --1 cm exp --1 and 0.0092 mu g cm exp --2 , respectively. Ten replicate analyses of a sample solution containing 30 mu g of molybdenum gave a mean absorbance of 0.325 with a relative standard deviation of 0.60%. The interferences of various ions were studied and conditions were developed for the determination of molybdenum in some alloy samples. 17 ref.--AA |
| doi_str_mv | 10.1039/AN9861101171 |
| format | Article |
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This complex is easily adsorbed onto microcrystalline naphthalene from an acetone solution and adsorbs in the range 360-370 nm. Beer's law is obeyed over the concentration range 5.0-75.0 mu g of Mo in 10 ml of chloroform solution. The molar adsorptivity and Sandell sensitivity are 1.041 x 10 exp 4 l mol exp --1 cm exp --1 and 0.0092 mu g cm exp --2 , respectively. Ten replicate analyses of a sample solution containing 30 mu g of molybdenum gave a mean absorbance of 0.325 with a relative standard deviation of 0.60%. The interferences of various ions were studied and conditions were developed for the determination of molybdenum in some alloy samples. 17 ref.--AA</description><identifier>ISSN: 0003-2654</identifier><identifier>EISSN: 1364-5528</identifier><identifier>DOI: 10.1039/AN9861101171</identifier><identifier>CODEN: ANALAO</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Analytical chemistry ; Chemistry ; Exact sciences and technology ; Spectrometric and optical methods</subject><ispartof>Analyst (London), 1986-10, Vol.111 (10), p.1171-1174</ispartof><rights>1987 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c348t-43d00a74aea46451483f87279fdc7e106ccc17c094869cb662b587f0540c47013</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,2818,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8012497$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>FARID HUSSAIN, M</creatorcontrib><creatorcontrib>MOHAN KATYAL</creatorcontrib><creatorcontrib>BAL KRISHAN PURI</creatorcontrib><creatorcontrib>MASATADA SATAKE</creatorcontrib><title>Spectrophotometric determination of molybdenum after separation by the adsorption of its trifluoroethylxanthate on naphthalene</title><title>Analyst (London)</title><description>Molybdenum reacts with potassium trifluoroethy xanthate to form a water-insoluble complex in the acid concentration range 0.1-3M, p H 1.0-3.5. 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This complex is easily adsorbed onto microcrystalline naphthalene from an acetone solution and adsorbs in the range 360-370 nm. Beer's law is obeyed over the concentration range 5.0-75.0 mu g of Mo in 10 ml of chloroform solution. The molar adsorptivity and Sandell sensitivity are 1.041 x 10 exp 4 l mol exp --1 cm exp --1 and 0.0092 mu g cm exp --2 , respectively. Ten replicate analyses of a sample solution containing 30 mu g of molybdenum gave a mean absorbance of 0.325 with a relative standard deviation of 0.60%. The interferences of various ions were studied and conditions were developed for the determination of molybdenum in some alloy samples. 17 ref.--AA</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/AN9861101171</doi><tpages>4</tpages></addata></record> |
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| ispartof | Analyst (London), 1986-10, Vol.111 (10), p.1171-1174 |
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| source | Royal Society of Chemistry Journals Archive (1841-2007); Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Analytical chemistry Chemistry Exact sciences and technology Spectrometric and optical methods |
| title | Spectrophotometric determination of molybdenum after separation by the adsorption of its trifluoroethylxanthate on naphthalene |
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