海水中超低含量活性磷酸盐的Mg(OH)<sub>2</sub>共沉淀法测定研究

朱赖民; 李犇

海水中超低含量活性磷酸盐的Mg(OH)₂共沉淀法测定研究

朱赖民,
李犇

西北大学地质系大陆动力学国家重点实验室, 陕西西安 710069

基金项目: 环境地球化学国家重点实验室项目(SKLEG5001);国家自然科学基金项目(40234041;40060005);国家留学基金项目

计量
- 文章访问数: 885
- HTML全文浏览量: 12
- PDF下载量: 1241
- 被引次数: 10
出版历程
- 收稿日期: 2007-01-25
- 修回日期: 2008-05-06

Analysis of nanomolar concentrations of phosphate in seawater with liquid waveguide after Mg(OH)₂ coprecipitation

ZHU Lai-min,
LI Ben

State key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an 710069, China

摘要

摘要: 活性磷(正磷酸盐)是海洋浮游植物生长所必需的物质基础^[1-8],磷的生物可利用性直接影响全球的初级生产力水平.磷在特定的海洋环境中还可能限制固氮作用,成为限制海洋初级生产力的重要因素^[1,3,6].海水中磷酸盐含量的测定也是海洋污染调查的重要指标之一^[4,9].农业和工业废水中磷的过度排放导致河口和近岸海水富营养化,引起浮游植物异常繁殖,造成“赤潮”现象^[4].因此,海水中磷的准确测定对深入理解生物地球化学过程及海洋环境保护具有重要理论和实际意义^[4-6,9].磷钼蓝分光光度法是海水中活性磷的经典测定方法,检测限为324 nmo1/dm^3[5],但在一些寡营养盐海域,例如在南海、地中海
- 液芯波导毛细管流通池 /
- 分光分析 /
- Mg(OH)₂共沉淀 /
- 磷酸盐分析
- Liquid Waveguide Capillary Flow Cell(LWCFC) /
- Mg(OH)₂ coprecipitation /
- analysis of low Concent rations of Phosphate in seawater /

HTML全文

参考文献(15)

HABERER J L,BRANDES J A.A high sensitivity,low volume HPLC method to determine soluble reactive phosphate in fresh water and sahwater[J].Marine Chemistry,2003,82:185-196.

MARIA C,ORLANDO F,EMERSON V.Determination of phosphate in natural water employing a monosegmented flow system with simultaneous multiple injection[J].Takanta,2004,62:469-475.

BJORKMAN K,THOMSON A L,KARI D M.Phosphorus dynamics in the North Pacific subtropical gyre[J].Aquat Microb Ecol,2000,22:185-198.

暨卫东,许昆灿.磷钼蓝萃取分光光度法测定海水中的活性磷酸盐[M]//许昆灿,吴丽卿,傅天保等.海洋污染物分析方法.北京:海洋出版社,1992:69-73.

袁东星,梁英.海洋环境中痕量活性磷分析技术的研究进展[J].环境化学,2006,26(3):1-5.

WU J F,SUND A W,BOYLE E.Phosphate Depletion in the Weatern North Atlantic Ocean[J].Science,2000,289:759-762.

ZHANG Jia-zhong,FISCHER C J,ORTNER P B.Optimization of performance and minimization of silicate interference in continuous flow phosphate analysis[J].Talanta 1999,49:293-304.

ZHANG J Z,CHI J.Automated Analysis of Nanomolar Concentrations of Phosphate in Natural Waters with Liquid Waveguid[J].Environ Sci Technol,2002,36:1048-1053.

PROCTOR C M,HOOD D W.Determination of inorganic phosphate in sea water by an iso-butanol extraction procedure[J].J Mar Res,1954,13:122-132.

YILMAZ A,TUGRUL S.The effect of cold and warm-core eddies on the distribution and stoichiometry of dissolved nutrientin the northeastern Mediterranean[J].J Mar Syst,1998,16:253-268.

GRASSHOFF K,KREMLING K,EHRHARDT M.Methods of Seawater Analysis[M].3rd ed.Weinheim,Germany:Wiley-VCH,1999:10-55.

KARL D M,TIEN G.MAGIC:a sensitive and precise method for measuring dissolved phosphorus in aquatic environments[J].Limnol Oceanogr,1992,37,105-116.

MCKELVIE I D,PEAT D M W,WORSFOLD P J.Techniques for the quantification and speciation of phosphorus in natural waters[J].Anal Proc Incl Anal Comm.1995,32:437-445.

WU J F,BOYLE E A.Determination of iron in seawater by high-resolution isotope dilution inductively coupled plasma mass spectrometry after Mg(OH)2 coprecipitation[J].Analytica Chimica Aeta,1998,367:183-191.

PAI S C,YANG C C,RILEY J P.Effects acidity and molybdate concentration on the kinetics of the formation of the phosphoantimonylmolybdenum biue complex[J].Analytica Chimica,1990,229:115-120.

施引文献

期刊类型引用(6)

1.	张雅婷，韦章良，龙丽娟，杨芳芳，肖志梁. 长心卡帕藻应对海洋酸化和升温的环境适应性研究. 海洋科学. 2023(07): 12-21 . 百度学术
2.	张晓雯，唐启升. 浒苔碳汇功能评估及其扩增途径. 渔业科学进展. 2022(05): 34-39 . 百度学术
3.	史晓寒，邹定辉，何泉，李刚. 不同光强下长茎葡萄蕨藻(Caulerpa lentillifera)直立枝和匍匐枝的光生理特征及其对升温的响应. 热带海洋学报. 2022(05): 150-160 . 百度学术
4.	张忠山，王晓梅，刘峰，杨志红，吴湘. 石莼属绿藻应答环境胁迫的生理特征与机制研究进展. 海洋环境科学. 2020(03): 473-479 . 百度学术
5.	王广策，王辉，高山，郇丽，王旭雷，顾文辉，解修俊，张建恒，孙松，于仁成，何培民，郑阵兵，林阿朋，牛建峰，王立军，张宝玉，沈颂东，卢山. 绿潮生物学机制研究. 海洋与湖沼. 2020(04): 789-808 . 百度学术
6.	刘榆莎，王东，徐晓婷，徐年军，李亚鹤. 温度和盐度对浒苔生长和光合生理特性的影响. 水生生物学报. 2016(06): 1227-1233 . 百度学术