Direct Determination of Dissolved Phosphate and Silicate in Seawater by Ion Exclusion Chromatography Sector Field Inductively Coupled Plasma Mass Spectrometry

Yang, Lu; Mester, Zoltán

doi:10.1021/ac5002228

Cited by 26 publications

(18 citation statements)

References 34 publications

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“…The concentration of dissolved phosphate determined in sea-water with this ion chromatographic method (1.69 ± 0.04) µmol/L is in good agreement with the result of the colorimetric procedure (1.71 ± 0.04) µmol/L [38]. Typical chromatogram of a sample is in the original publication presented in Figure 4. …”

Section: Phosphatesupporting

confidence: 79%

Ion Chromatographic Analyses of Sea Waters, Brines and Related Samples

Gros

2013

Water

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This review focuses on the ion chromatographic methods for the analyses of natural waters with high ionic strength. At the beginning a natural diversity in ionic composition of waters is highlighted and terminology clarified. In continuation a brief overview of other review articles of potential interest is given. A review of ion chromatographic methods is organized in four sections. The first section comprises articles focused on the determination of ionic composition of water samples as completely as possible. The sections-Selected Anions, Selected Cations and Metals-follow. The most essential experimental conditions used in different methods are summarized in tables for a rapid comparison. Techniques encountered in the reviewed articles comprise: direct determinations of ions in untreated samples with ion-or ion-exclusion chromatography, or electrostatic ion chromatography; matrix elimination with column-switching; pre-concentration with a chelation ion chromatography and purge-and-trap pre-concentration. Different detection methods were used: non-suppressed conductometric or suppressed conductometric, direct spectrometric or spectrometric after a post-column derivetization, and inductively coupled plasma in combination with optical emission or mass spectrometry.Keywords: ion chromatography; sea water; brine; mineral water; anions; cations; metals Natural Diversity of WatersWe restrict the scope of this review and choose to focus on natural waters with high ionic strength in which concentrations of ions extend over several orders of magnitude and therefore these waters present a special challenge for ion chromatographic (IC) analysis, especially if major and minor ions OPEN ACCESS

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Section: Phosphatesupporting

confidence: 79%

Ion Chromatographic Analyses of Sea Waters, Brines and Related Samples

Gros

2013

Water

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“…An ion-exclusion chromatography (IEC) isotope dilution inductively coupled plasma sector field mass spectrometry (IEC-ID-ICP-MS) was developed in previous studies. 5,6 It is recognized to be one of the primary methods of measurement. 7 Although it is able to give sufficient accuracy for the measurement, in some cases it is difficult to use it because it required complicated operations, such as isotope dilution and expensive apparatus, such as an ICP-sector field mass spectrometer.…”

Section: Introductionmentioning

confidence: 99%

Determination of Dissolved Silica in Seawater by Ion-exclusion Chromatography with Post-column Derivatization/ Silicomolybdenum Yellow Detection

2018

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The determination of dissolved silica in seawater was investigated by an ion-exclusion chromatography with a post-column derivatization/silicomolybdenum yellow method. To determine dissolved silica in seawater accurately, the experimental conditions, such as the volume of a reaction coil, the eluent concentration and the sample dilution factor, were optimized. This is the first report that has examined the details of the experimental condition for the measurement of dissolved silica in seawater by ion-exclusion chromatography with silicomolybdenum-yellow detection. The developed method was compared with the widely used continuous flow analysis and an ion-exclusion chromatography isotope dilution inductively coupled plasma mass spectrometry, which is a primary method of measurement. The analytical results by the three methods were in good agreement, considering the expanded uncertainty with a coverage factor, 2. The validity of the three methods was confirmed with each other. The developed method can give a quantitative value with less than 1% of the expanded uncertainty, and can be used for the determination of dissolved silica in candidate reference materials having a seawater matrix.

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“…Usually poorer precision of final results is expected due to the larger uncertainty associated with linear regression of intensities used for the quantitation. Alternatively, combining the standard addition and internal standardization may significantly improve analytical precision through the correction of drifts during analysis 20–23 . In order to provide a second set of high quality data for Ca, K, Mg and Na for the certification of AQUA-1 drinking water CRM, complementary to the ICP-AES results, Mg was measured using double ID.…”

Section: Resultsmentioning

confidence: 99%

The direct and accurate determination of major elements Ca, K, Mg and Na in water by HR-ICPMS

Nadeau

Mester

Yang

2018

Sci Rep

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A direct, accurate and precise method is reported for major elements Ca, K, Mg and Na measurements in river and drinking water using a high resolution ICP-MS. Double isotope dilution calibration was used for the determination of Mg whereas the combined standard addition and internal standardization (Sc) was used for Ca, K and Na measurements. The method is validated by analysis fresh water SLRS-5, SLRS-6 and SRM1640a with satisfactory results characterized by high precisions of 0.055% to 0.66% RSD (or 0.29–1.8% relative combined uncertainty) for all four analytes, superior to those reported in earlier studies. As noted, use of internal standard Sc has significantly (3–33 times) improved measurement precisions for Ca, K and Na compared to standard addition calibration alone. The proposed method was applied for the determination of major elements Ca, K, Mg and Na in a candidate drinking water CRM AQUA-1. Values of 1.908 ± 0.007 µg g−1, 8.27 ± 0.14 µg g−1, 0.660 ± 0.010 µg g−1 and 13.76 ± 0.05 µg g−1 (u, k = 1) were obtained for Mg, Ca, K and Na in AQUA-1 drinking water, respectively.

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Direct Determination of Dissolved Phosphate and Silicate in Seawater by Ion Exclusion Chromatography Sector Field Inductively Coupled Plasma Mass Spectrometry

Cited by 26 publications

References 34 publications

Ion Chromatographic Analyses of Sea Waters, Brines and Related Samples

Ion Chromatographic Analyses of Sea Waters, Brines and Related Samples

Determination of Dissolved Silica in Seawater by Ion-exclusion Chromatography with Post-column Derivatization/ Silicomolybdenum Yellow Detection

The direct and accurate determination of major elements Ca, K, Mg and Na in water by HR-ICPMS

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