Comparison of biota sample pretreatments for arsenic speciation with coupled HPLC-HG-ICP-MS

Gómez-Ariza, José Luis; Sánchez-Rodas, Daniel; Giráldez, Inmaculada; Morales, E.

doi:10.1039/a908884i

Cited by 85 publications

(44 citation statements)

References 29 publications

(54 reference statements)

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“…Solutions containing 100 ppm of diazinon at pH 7 -11 showed no degradation after 10 days. 17 The results given in Table 3 indicate that a pH value of 7 gave the best overall recoveries. Neither a pH value of 3 nor a pH value of 11 improved the results.…”

Section: Extraction Of the Surface Watermentioning

confidence: 94%

“…11 Recently, the use of microwave energy (microwave-assisted extraction, MAE) for the extraction of organic compounds from solid matrices, such as soil, seeds, foods and feeds, were reported. [12][13][14][15][16][17] In MAE, reducing the solvent volume used in extraction systems would also reduce the cost and time of the analysis. The extraction of several OPPs (atrazine, parathionmethyl, chlorpyrifos, fenamiphos and methidathion) by this method has been reported.…”

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confidence: 99%

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Monitoring of the Pesticide Diazinon in Soil, Stem and Surface Water of Rice Fields

et al. 2002

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Section: Extraction Of the Surface Watermentioning

confidence: 94%

mentioning

confidence: 99%

Monitoring of the Pesticide Diazinon in Soil, Stem and Surface Water of Rice Fields

et al. 2002

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“…These include ion chromatography (IC) and high performance liquid chromatography (HPLC) combined with hydride generation atomic absorption spectrometry or inductively coupled plasma mass spectrometry (ICP-MS). [3][4][5][6][7][8][9][10][11][12][13] HPLC-ICP-MS is widely applied to arsenic speciation because it provides the advantages of excellent separation and high sensitivity. Methods using reversed phase columns for HPLC and ion exchange columns for IC, coupled with ICP-MS, are widely used.…”

Section: Introductionmentioning

confidence: 99%

Reversed Phase Column HPLC-ICP-MS Conditions for Arsenic Speciation Analysis of Rice Flour

Narukawa¹,

Matsumoto

Nishimura

et al. 2015

ANAL. SCI.

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New measurement conditions for arsenic speciation analysis of rice flour were developed using HPLC-ICP-MS equipped with a reversed phase ODS column. Eight arsenic species, namely, arsenite [As(III)], arsenate [As(V)], monomethylarsonic acid (MMAA), dimethylarsinic acid (DMAA), trimethylarsine oxide (TMAO), tetramethylarsonium (TeMA), arsenobetaine (AsB) and arsenocholine (AsC), were separated and determined under the proposed conditions. In particular, As(III) and MMAA and DMAA and AsB were completely separated using a newly proposed eluent containing ammonium dihydrogen phosphate. Importantly, the sensitivity changes, in particular those of As(V) and As(III) caused by coexisting elements and by complex matrix composition, which had been problematical in previously reported methods, were eliminated. The new eluent can be applied to C8, C18 and C30 ODS columns with the same effectiveness and with excellent repeatability. The proposed analytical method was successfully applied to extracts of rice flour certified reference materials.

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“…For example, a 16-fold sensitivity enhancement is obtained for cadmium determination by using HPLC-HG-ICP/MS rather than the conventional nebulization [24]. So far the HPLC-HG-ICP/MS technique has been applied for the speciation of elements such as cadmium [24] and arsenic [25,26]. Anion exchange chromatographic separation mode was used in these hyphenated systems.…”

Section: Introductionmentioning

confidence: 99%

Rapid and direct speciation of methyltins in seawater by an on-line coupled high performance liquid chromatography–hydride generation–ICP/MS system

Zhai

Liu

et al. 2009

Talanta

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a b s t r a c tA novel on-line coupled HPLC-hydride generation (HG)-ICP/MS system was developed for rapid, direct and sensitive speciation of methyltins in seawater without any pretreatment step. Methyltin compounds were separated by reversed phase HPLC, and then on-line reacted with potassium borohydride and acetic acid to generate volatile hydride products. The volatile derivatization products were separated in the spray chamber of ICP/MS and then introduced into ICP/MS by argon gas for detection. Monomethyltin (MMT), dimethyltin (DMT) and trimethyltin (TMT) were baseline separated in less than 15 min by reversed phase HPLC. The influence of KBH 4 concentration and type of acid on the system performance was investigated and optimized. Calibration curves, based on peak heights against concentration, were linear in the range of 0.5-50 ng (Sn) mL −1 of methyltins with correlation coefficients of 0.9990, 0.9990 and 0.9996 for MMT, DMT and TMT, respectively. The relative standard deviations measured at 10 ng (Sn) mL −1 for these three methyltins were in the range of 0.6-1.4% (n = 5), and the calculated detection limits (S/N = 3) for MMT, DMT and TMT were 0.266, 0.095 and 0.039 ng (Sn) mL −1 , respectively. This method was successfully applied to the speciation of methyltins in seawater with spiked recovery in the range of 95.4-106.9%. MMT and DMT were detected in all the seawater samples with concentrations in the range of 1.0-1.5 and 0.30-0.57 ng (Sn) mL −1 for MMT and DMT, respectively.

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Comparison of biota sample pretreatments for arsenic speciation with coupled HPLC-HG-ICP-MS

Cited by 85 publications

References 29 publications

Monitoring of the Pesticide Diazinon in Soil, Stem and Surface Water of Rice Fields

Monitoring of the Pesticide Diazinon in Soil, Stem and Surface Water of Rice Fields

Reversed Phase Column HPLC-ICP-MS Conditions for Arsenic Speciation Analysis of Rice Flour

Rapid and direct speciation of methyltins in seawater by an on-line coupled high performance liquid chromatography–hydride generation–ICP/MS system

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