Flow-injection—diode-array detection: a hybrid approach to the automation of simultaneous determinations of metal ions with chromogenic reagents
A straightforward procedure for the simultaneous determination of binary mixtures by using a diode-array detector in a flow-injection manifold and a common photometric reagent for both species is proposed. The optimum conditions are discussed. The high speed at which the detector used can perform sp...
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| Veröffentlicht in: | Analytica chimica acta 1990, Vol.241 (1), p.153-159 |
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| container_title | Analytica chimica acta |
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| creator | Melgarejo, A.Gallardo Pavón, J.M.Cano Castro, A.Ríos |
| description | A straightforward procedure for the simultaneous determination of binary mixtures by using a diode-array detector in a flow-injection manifold and a common photometric reagent for both species is proposed. The optimum conditions are discussed. The high speed at which the detector used can perform spectral scans allows at least one spectrum to be obtained at the maximum of the flow-injection peak. The system was tested for the determination of nickel and zinc with 1-(2-pyridylazo)-2-naphthol (PAN). The coloured complexes formed yield extensively overlapped spectra that can only be resolved through their second derivatives. The proposed procedure allows the determination of these metal ions at the μg ml−1 level, with an r.s.d. of about 4% at a rate of 30–35 samples h−1. |
| doi_str_mv | 10.1016/S0003-2670(00)83274-2 |
| format | Article |
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The proposed procedure allows the determination of these metal ions at the μg ml−1 level, with an r.s.d. of about 4% at a rate of 30–35 samples h−1.</description><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Diode-array detection</subject><subject>Exact sciences and technology</subject><subject>Nickel</subject><subject>Spectrometric and optical methods</subject><subject>Zinc</subject><issn>0003-2670</issn><issn>1873-4324</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNqFkctO3TAQhq0KpJ5CH6GSN63aRcCXxIm7QeioXCQkFrRry7EnjVESn9o-oLPjGRBPyJM0FwRLVvZ4vn_GMz9CXyg5ooSK4xtCCM-YKMl3Qn5UnJV5xj6gFa1KnuWc5Xto9Yp8RJ9ivB1DRkm-Qo9nnb_P3HALJjk_PD88WectZDoEvcMW0vL-E2vc7urgLNabTfDatDh5nFrAept8rycI-wZH12-7pAfw2zjLQ--GORundA9Jd3iO7l1qsWmD7_1fGJzBAfR4SfEQ7Te6i_D55TxAf85-_V5fZFfX55fr06vMcFGlTEorQYAtKYi8YaaiEmpC67KohYFaUFo2lgPURtrCmorlsrasJlUD1hZc8gP0bak7zvNvCzGp3kUDXbf8XrFCCFnlbASLBTTBxxigUZvgeh12ihI1OaBmB9S0XkWImh1Qk-7rSwMdje6aoAfj4ptY5oLTgo_cycLBOO2dg6CicTAYsC6M61fWu3c6_QdS6qBk</recordid><startdate>1990</startdate><enddate>1990</enddate><creator>Melgarejo, A.Gallardo</creator><creator>Pavón, J.M.Cano</creator><creator>Castro, A.Ríos</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>1990</creationdate><title>Flow-injection—diode-array detection: a hybrid approach to the automation of simultaneous determinations of metal ions with chromogenic reagents</title><author>Melgarejo, A.Gallardo ; Pavón, J.M.Cano ; Castro, A.Ríos</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-99d9e6ed71e64f2c819eb01b75b6ceb6117fd3eebc9d5dc8249bd2b08fedd5393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Analytical chemistry</topic><topic>Chemistry</topic><topic>Diode-array detection</topic><topic>Exact sciences and technology</topic><topic>Nickel</topic><topic>Spectrometric and optical methods</topic><topic>Zinc</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Melgarejo, A.Gallardo</creatorcontrib><creatorcontrib>Pavón, J.M.Cano</creatorcontrib><creatorcontrib>Castro, A.Ríos</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Analytica chimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Melgarejo, A.Gallardo</au><au>Pavón, J.M.Cano</au><au>Castro, A.Ríos</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Flow-injection—diode-array detection: a hybrid approach to the automation of simultaneous determinations of metal ions with chromogenic reagents</atitle><jtitle>Analytica chimica acta</jtitle><date>1990</date><risdate>1990</risdate><volume>241</volume><issue>1</issue><spage>153</spage><epage>159</epage><pages>153-159</pages><issn>0003-2670</issn><eissn>1873-4324</eissn><coden>ACACAM</coden><abstract>A straightforward procedure for the simultaneous determination of binary mixtures by using a diode-array detector in a flow-injection manifold and a common photometric reagent for both species is proposed. 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| ispartof | Analytica chimica acta, 1990, Vol.241 (1), p.153-159 |
| issn | 0003-2670 1873-4324 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Analytical chemistry Chemistry Diode-array detection Exact sciences and technology Nickel Spectrometric and optical methods Zinc |
| title | Flow-injection—diode-array detection: a hybrid approach to the automation of simultaneous determinations of metal ions with chromogenic reagents |
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