Speciation analysis of aluminium and aluminium fluoride complexes by HPIC-UVVIS |
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| Authors: | Marcin Frankowski Anetta Zio?a-Frankowska |
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| Affiliation: | Department of Water and Soil Analysis, Faculty of Chemistry, Adam Mickiewicz University, Drzyma?y 24, 60-613 Poznań, Poland |
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| Abstract: | The study presents a new analytical method for speciation analysis in fractionation of aluminium fluoride complexes and free Al3+ in soil samples. Aluminium speciation was studied in model solutions and soil extract samples by means of high performance ion chromatography (HPIC) with UV-VIS detection using post-column reaction with tiron for the separation and detection of aluminium fluoride complex and Al3+ forms during one analysis. The paper presents particular stages of the chromatographic process optimization involving selecting the appropriate eluent strength, type of elution or concentration and quantity of derivatization reagent. HPIC was performed on a bifunctional analytical column Dionex IonPac CS5A. The use of gradient elution and the eluents A: 1 M NH4Cl and B: water acidified to pH of eluent phase, enabled full separation of fluoride aluminium forms as AlF2+, AlF30, AlF4− (first signal), AlF2+ (second signal) and form Al3+ in a single analytical procedure. The proposed new method HPIC-UVVIS was applied successfully in the quantitative and qualitative analysis of soil samples. |
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| Keywords: | oxine, 8-quinolinol,8-hydroxyquinoline PCV, pyrocatechol violet ferron, 7-iodo 8-hydroxy quinoline 5-sulfonic acid aluminon, triammonium salt of 5-[(3-carboxy-4-hydrox&sim henyl)(3-carboxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]-2-hydroxybenzoic acid ECR, Eriochrome Cyanine RC morin, 2&prime ,3,4&prime ,5,7-pentahydroxyflavone lumogallion, 2,2&prime ,4&prime -Trihydroxy-5-chloroazobenzene-3-sulfonic Acid tiron (4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt) HPLC, high-pressure liquid chromatography ICP-MS, inductively coupled plasma mass spectrometry ICP-AES, inductively coupled plasma atomic emission spectrometry ICP-OES, inductively coupled plasma optical emission spectrometry SEC/HPLC, size-exclusion HPLC FPLC, fast protein liquid chromatography ETAAS, electro thermal atomic absorption spectrometry UV-PDA, UV-photodiode array detector ES-MS-MS, electrospray tandem mass spectrometry FAAS, flame atomic absorption spectrometry |
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