Analysis for Cd, Cu, Ni, Zn, and Mn in estuarine water by inductively coupled plasma mass spectrometry coupled with an automated flow injection system

Beck, Nicole G.; Franks, Robert P.; Bruland, Kenneth W.

doi:10.1016/s0003-2670(01)01561-6

Cited by 77 publications

(43 citation statements)

References 12 publications

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“…The method was then used to analyze acidified (pH 1.7) samples from the California coast. The results were compared to those obtained for the same suite of samples analyzed by a FI system coupled to inductively coupled plasma sector field mass spectrometry (ICP-SFMS) detection (Beck et al 2002). Recently, the method was further optimized to include NTA as an activator, and the periodate salt was changed from potassium periodate (KIO 4 ) to NaIO 4 owing to the higher solubility at neutral pH of the latter (see Resing and Mottl [1992] for the preparation of KIO 4 ).…”

Section: Assessmentmentioning

confidence: 99%

“…Column loading pH-Toyopearl AF-Chelate-650M has been successfully used to quantitatively preconcentrate manganese from seawater at pH 8.8 and 9.0 (Warnken et al 2000;Beck et al 2002). To confirm and establish the optimal pH at which the IDA groups of the resin bind Mn(II), a series of acidified (pH < 1.7) seawater samples with dissolved manganese concentrations ([Mn 2+ ]) of ~ 10 nM were used.…”

Section: Assessmentmentioning

confidence: 99%

“…Surface samples collected from California coastal waters (acidified to pH 1.7 and stored at room temperature > 2 years) were analyzed by this method as well as by a previously published ICP-SFMS method (Beck et al 2002). A minor modification to the Beck et al (2002) method was the use of a pH 8.8 rinse solution (1:10 dilution of the sample pH modifier) in place of the pH 5.6 rinse solution. This was done to ensure complete retention of Mn 2+ by the column during the rinsing step.…”

Section: Assessmentmentioning

confidence: 99%

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Catalytically enhanced spectrophotometric determination of manganese in seawater by flow‐injection analysis with a commercially available resin for on‐line preconcentration

Aguilar-Islas

Bruland

2006

Limnology & Ocean Methods

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The sensitive, laboratory-and ship-based, flow-injection (FI) method for the determination of dissolved manganese in seawater developed by Resing and Mottl (Anal. Chem. 1992;64:2682-2687) has been significantly modified and improved by incorporating five significant changes. The three major changes are the use of a commercially available iminodiacetate (IDA) resin (Toyopearl AF-chelate 650M) in place of 8-hydroxyquinoline for on-line preconcentration of manganese and matrix removal, the addition of nitrilotriacetic acid as an activator ligand which increases sensitivity by a factor of 7 and decreases the limit of detection, and the on-line buffering of acidified samples before column loading. Two minor improvements include use of the more soluble sodium periodate in place of potassium periodate and elimination of Brij-35 surfactant. To accommodate these changes, the pH of samples was adjusted to 8.5 (vs. 7.8), a higher acid concentration was required to elute the Mn from the IDA resin, and stronger reaction buffer was required to neutralize the acid. The accuracy of the method was evaluated with the use of NASS-4 standard seawater and by a comparison study of samples from the California coast that were analyzed by this method and an FI method coupled to inductively coupled plasma sector field mass spectrometry detection. The detection limit and precision of the method depend on the amount of sample preconcentrated onto the column. By preconcentrating 1.6 mL of sample, a detection limit of 0.03 nM (3 times the standard deviation of a blank) and precision of 3.2% (as percent relative standard deviation) were obtained. The method was used on board ship to determine dissolved manganese in coastal waters off Oregon and Washington.

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Section: Assessmentmentioning

confidence: 99%

Section: Assessmentmentioning

confidence: 99%

Section: Assessmentmentioning

confidence: 99%

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Catalytically enhanced spectrophotometric determination of manganese in seawater by flow‐injection analysis with a commercially available resin for on‐line preconcentration

Aguilar-Islas

Bruland

2006

Limnology & Ocean Methods

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“…A column filled with a chelating resin followed by a rinse of matrix elements from the resin and elution of the metals allows one-step concentration and simplification of the matrix (Beck et al ., 2002;Evans et al ., 2005). Pre-concentration and elution can either be made 'off-line' with subsequent analysis of the collected eluate (Ferrarello et al ., 2002) or 'on-line' as part of the (ICP-MS) workflow (Beck et al ., 2002). Using the on-line method gives an elution profile (concentrations versus time) of the metals and the average peak or integrated intensity or the maximum peak intensity is used as being proportional to the sample metal concentration.…”

Section: Pre-concentration Methods For Seawater Analysismentioning

confidence: 99%

Trace Elements

Larsen

Søndergaard

Asmund

et al. 2011

Chemical Marine Monitoring

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“…There are several methods for the determination of zinc such as anodic stripping voltammetry, 1 spectrophotometry, 2 AAS, 3 FAAS, 4 GFAAS, 5 and ICP-MS. 6 These methods are of high sensitivity and accuracy. But some are expensive, timeconsuming, troublesome, and others are toxic.…”

Section: Introductionmentioning

confidence: 99%

On-line Determination of Zinc in Water and Biological Samples after Its Preconcentration onto Zincon Anchored Polyurethane Foam

2015

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A fast and sensitive on-line procedure for the determination of zinc in water and biological samples was developed. Zinc was preconcentrated in a mini-column packed with polyurethane foam (PUF) chemically modified with zincon via -N=N-bonding. The optimal conditions for preconcentration were pH 8.5 and sample flow rate of 4.0 mL min -1 . Quantitative desorption of Zn(II) was obtained by 0.1 mol L -1 hydrochloric acid and subsequent spectrophotmetric determination using 4-(2-pyridylazo)-resorcinol at 498 nm. The obtained detection limit was found to be 3.0 ng mL -1 , precision (RSD) was 4.8 and 6.7% at 20 and 110 ng mL -1 , respectively, for 60 s preconcentration time and enrichment factor was 31. The linearity range was from 10 to 120 ng mL -1 and maximum sample throughput was 20 h -1 . Finally, the method was successfully applied to the determination of zinc in tap water, Nile River water and human urine samples with RSD in the range of 1.1 -8.3%.

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Analysis for Cd, Cu, Ni, Zn, and Mn in estuarine water by inductively coupled plasma mass spectrometry coupled with an automated flow injection system

Cited by 77 publications

References 12 publications

Catalytically enhanced spectrophotometric determination of manganese in seawater by flow‐injection analysis with a commercially available resin for on‐line preconcentration

Catalytically enhanced spectrophotometric determination of manganese in seawater by flow‐injection analysis with a commercially available resin for on‐line preconcentration

Trace Elements

On-line Determination of Zinc in Water and Biological Samples after Its Preconcentration onto Zincon Anchored Polyurethane Foam

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