Determination and Speciation of Aluminum in Soil Extracts by High-Performance Liquid Chromatography with Fluorescence Detection Using 5-Sulfo-8-quinolinol

Tsunoda, Kin-ichi; Yagasaki, Toshiyuki; Aizawa, Shoichi; Akaiwa, Hideo; Satake, Kenichi

doi:10.2116/analsci.13.757

Cited by 29 publications

(17 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[3][4][5][6][7][8][9][10] On the other hand, because of the complexity of a real sample, the chromatographic separation of the target metallic element species was usually necessary for its speciation. [11][12][13][14][15] In this study, the interaction of lanthanum with ethylenediamine tetraacetic acid (EDTA), which has donor atoms of nitrogen and oxygen, and may be considered as a model ligand existing in the environment, and with Ltryptophen (Try) as the basic unit of a protein, were studied by the cation-exchange HPLC coupled with ESI-MS. The stability of La species during a cation-exchange chromatographic separation process is also discussed in this paper for obtaining accurate information on lanthanum speciation.…”

mentioning

confidence: 99%

Evaluation of Dissolved Species of Lanthanum in the Solutions Containing Different Amino Acids by Cation-Exchange Chromatography Coupled with Electrospray Ionization Mass Spectrometry

et al. 2000

View full text Add to dashboard Cite

Because the separation and purification methods of rare-earth elements (REEs) are well developed, REEs have recently been widely used in many fields of industry and agriculture. The widespread application of REEs as additives in fertilizers, especially in China, 1 inherently leads to their residues in the environment, accumulation in organisms, and entering into the food chain. Moreover, the bioavailability and toxicity of REEs mainly depend on its dissolved species, which can be partly assimilated by plants and animals. Thus, the speciation analysis of REEs in the environment and organisms is becoming ever more important today. The study of the interaction of REEs with humic substances and proteins is a useful way to understand their behavior in the environment or during the biological process of an organism.Electrospray ionization (ESI), as a soft source for mass spectrometry (MS), has recently been used to evaluate the chemical species of dissolved metal ions; it provides information on the interaction between metal ions and organic ligands, which forms the basis of many essential biochemical processes. [3][4][5][6][7][8][9][10] On the other hand, because of the complexity of a real sample, the chromatographic separation of the target metallic element species was usually necessary for its speciation. [11][12][13][14][15] In this study, the interaction of lanthanum with ethylenediamine tetraacetic acid (EDTA), which has donor atoms of nitrogen and oxygen, and may be considered as a model ligand existing in the environment, and with Ltryptophen (Try) as the basic unit of a protein, were studied by the cation-exchange HPLC coupled with ESI-MS. The stability of La species during a cation-exchange chromatographic separation process is also discussed in this paper for obtaining accurate information on lanthanum speciation. Experimental Reagents and chemicalsLanthanum oxide (La2O3) was obtained from Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences; purity >99.9999%. La stock solution (1.00 mg cm -3 ) was prepared by dissolving an appropriate amount of La2O3, which had been ignited at 850˚C for 4 h, in 2 mol dm -3 HNO3, and then diluted with doubly deionized Milli-Q water to 100 mL in a polyethylene bottle. Ligand stock solutions (5×10 -3 mol dm -3 ) were prepared by dissolving EDTA-Na2 (A. R., Shanghai Reagent Factory) with doubly deionized Milli-Q water, and Try (purity >99%, Shanghai Bo-Ao Bio-Technology Co.) with a 1:1 water-methanol solution in acid-washed polyethylene bottles. HPLC-grade methanol was obtained from Shanghai Wusong Chemical Factory. An ammonium acetate-acetic acid (A. R., Shanghai Reagent Factory) solution (1×10 -3 mol dm -3 , pH 5 -6) was used as a buffer. Formic acid (A. R., Shanghai Reagent Factory) and α-hydroxyisobutyric acid (α-HIBA, Hunan Institute of Rare-earth Metals of China, A. R.) solutions were used as mobile phases for HPLC separation. Samples were prepared by combining the calculated amount of stock and buffer solutions to give an La concentration of 1×10...

show abstract

mentioning

confidence: 99%

Evaluation of Dissolved Species of Lanthanum in the Solutions Containing Different Amino Acids by Cation-Exchange Chromatography Coupled with Electrospray Ionization Mass Spectrometry

et al. 2000

View full text Add to dashboard Cite

show abstract

“…5 illustrates how reflectance changed with the incidence angle for a monochromatic beam traveling through air-silica interface. It was obtained by numerical simulation of Fresnel's complete equation (1). When the incidence angle <60 • , the reflectance was low and it changed slowly.…”

Section: Selection Of Pinholementioning

confidence: 99%

“…Fluorescence detection has been one of the most sensitive and selective detection schemes available for capillary flow systems, such as flow injection analysis (FIA), capillary electrophoresis (CE), and microcolumn liquid chromatography (-LC) [1][2][3]. Lightemitting diode (LED) has many advantages including long lifetime, high stability, small in size, and low cost.…”

Section: Introductionmentioning

confidence: 99%

A compact and highly sensitive light-emitting diode-induced fluorescence detector for capillary flow systems

Geng

Guan

2012

Talanta

View full text Add to dashboard Cite

“…Fluorescence detection has been one of the most sensitive and selective detection schemes available for fluid flow systems, such as flow injection analysis (FIA), capillary electrophoresis (CE), and liquid chromatography (LC) [1][2][3]. The light-emitting diode (LED) has many prominent advantages, including low energy consumption, long lifetime, high stability, small size, and low cost.…”

Section: Introductionmentioning

confidence: 99%

Signal-to-noise ratio enhancement of the compact light-emitting diode-induced fluorescence detector

Geng

et al. 2012

Talanta

View full text Add to dashboard Cite

Determination and Speciation of Aluminum in Soil Extracts by High-Performance Liquid Chromatography with Fluorescence Detection Using 5-Sulfo-8-quinolinol

Cited by 29 publications

References 29 publications

Evaluation of Dissolved Species of Lanthanum in the Solutions Containing Different Amino Acids by Cation-Exchange Chromatography Coupled with Electrospray Ionization Mass Spectrometry

Evaluation of Dissolved Species of Lanthanum in the Solutions Containing Different Amino Acids by Cation-Exchange Chromatography Coupled with Electrospray Ionization Mass Spectrometry

A compact and highly sensitive light-emitting diode-induced fluorescence detector for capillary flow systems

Signal-to-noise ratio enhancement of the compact light-emitting diode-induced fluorescence detector

Contact Info

Product

Resources

About