ZENG Haiao, WU Jinglu. A METHOD TO EXTRACT AMMONIUM AND NITRATE FROM FRESHWATER FOR NITROGEN ISOTOPE ANALYSIS[J]. Marine Geology & Quaternary Geology, 2013, 33(6): 173-177. DOI: 10.3724/SP.J.1140.2013.06173
Citation: ZENG Haiao, WU Jinglu. A METHOD TO EXTRACT AMMONIUM AND NITRATE FROM FRESHWATER FOR NITROGEN ISOTOPE ANALYSIS[J]. Marine Geology & Quaternary Geology, 2013, 33(6): 173-177. DOI: 10.3724/SP.J.1140.2013.06173

A METHOD TO EXTRACT AMMONIUM AND NITRATE FROM FRESHWATER FOR NITROGEN ISOTOPE ANALYSIS

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  • Received Date: April 18, 2012
  • Revised Date: July 10, 2012
  • This paper presents a simple and rapid method to concentrate ammonium and nitrate from freshwater samples for an on-line isotope analysis using an elemental analyzer coupled to a mass spectrometer. Ammonium and nitrate are collected by passing the water-sample through pre-filled, disposable, ion exchanging resin columns. The ammonium and nitrate in sample solutions are separated as ammonium into diluted H2SO4 by sequential distillation techniques. Then, the excrescent SO42- in the distillate is precipitated directly as an insoluble salt of BaSO4. (NH4)2SO4 is collected by freezing-drying filtrate, which is subsequently combusted in an elemental analyzer for δ15N determination. The sorption efficiency of 001×7 cationic resin and 732 cationic resin for 2 L sample solutions with ammonium and nitrate concentration of 0.5, 1.0, 5.0 mg/L is >95.1%, elution recovery is >95%, showing insignificant isotope fractionation during precipitation. Analyses of the solutions prepared from (NH4)2SO4 and KNO3 distributed, and also the rain, river, lake and well samples showed that the method can produce good quality of isotope measurements.
  • [1]
    Conley D J, Paerl H W, Howarth, R W, et al. Controlling Eutrophication:Nitrogen and Phosphorus[J]. Science, 2009, 323:1014-1015.
    [2]
    Paerl H W, Xu H, McCarthy M J, et al. Controlling harmful cyanobacterial blooms in a hyper-eutrophic lake (Lake Taihu, China):The need for a dual nutrient (N&P) management strategy[J]. Water Research, 2011, 45:1973-1983.
    [3]
    Curt M D, Aguado P, Sánchez G, et al. Nitrogen isotope ratios of synthetic and organic sources of nitrate water contamination in Spain[J]. Water, Air, and Soil Pollution, 2004, 151:135-142.
    [4]
    Li X D, Masuda H, Koba K, et al. Nitrogen isotope study on nitrate-contaminated groundwater in the Sichuan Basin, China[J]. Water, Air, and Soil Pollution, 2007, 178:145-156.
    [5]
    Søvik A K, Mørkved P T. Use of stable nitrogen isotope fractionation to estimate denitrification in small constructed wetlands treating agricultural runoff[J]. Science of Total Environment, 2008, 392:157-165.
    [6]
    Sakata M. A simple and rapid method for δ15N determination of ammonium and nitrate in water samples[J]. The Geochemical society of Japan, 2001, 35(4):271-275.
    [7]
    Silva S R, Kendall C, Wilkison D H, et al. A new method for collection of nitrate from fresh water and the analysis of nitrogen and oxygen isotope ratios[J]. Journal of Hydrology, 2000, 228:22-36.
    [8]
    Lehmann M F, Bernasconi S M, McKenzie J A. A method for the extraction of ammonium from freshwaters for nitrogen isotope analysis[J]. Anal. Chem., 2001, 73:4717-4721.
    [9]
    Granger J, Sigman D M. Removal of nitrite with sulfamic acid for nitrate N and O isotope analysis with the denitrifier method[J]. Rapid Communications in Mass Spectrometry, 2009, 23(23):3753-3762.
    [10]
    肖化云, 刘丛强. 水样硝酸盐氮同位素分析预处理方法探讨[J]. 岩矿测试, 2002, 21(2):105-108.

    [XIAO Huayun,LIU Congqiang. Discussion on a method for preparation nitrate for δ15N analysis in water samples[J]. Rock and Mineral Analysis, 2002, 21(2):105-108.]
    [11]
    Garten J R C T. Nitrogen isotope of ammonium and nitrate in bulk precipitation and forest throughfall[J]. Intern J. Anal. Chem., 1992, 47(1):33-45.
    [12]
    杨素更. 地下水中硝酸盐氮同位素测定方法[J]. 地质实验室, 1996, 12(2):96-98.

    [YANG Sugeng. The method of nitrate δ15N analysis for ground water[J]. Geological Laboratory, 1996, 12(2):96-98.]
    [13]
    Sigman D M, Casciotti K L, Andreani M, et al. A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater[J]. Analytical Chemistry, 2001, 73:4145-4153.
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