IRON(II) IN RAINWATER, SNOW, AND SURFACE SEAWATER FROM A COASTAL ENVIRONMENT

被引：59

作者：

ZHUANG, GS ^{[1
]}

YI, Z ^{[1
]}

WALLACE, GT ^{[1
]}

机构：

[1] CYTEC IND INC,STAMFORD,CT 06904

来源：

MARINE CHEMISTRY | 1995年 / 50卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0304-4203(95)00025-M

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using a newly developed HPLC method for the determination of Fe(II) concentration in a variety of aqueous environmental samples we found that Fe(II) accounts for 50-74% of the total filterable Fe in coastal surface seawater, 25-53% in rain samples, and 25-74% in snow collected from the vicinity of Massachusetts Bay, and Boston Harbor. We also found the residence time of Fe(II) in natural seawater to follow pseudo-first-order kinetics with an apparent half-life on the order of 30-70 min, much longer than previously thought. The observation of high Fe(II) concentrations and long apparent half-life reflect the product of as yet undefined chemical processes occurring in either atmosphere and/or seawater environments. These significant concentrations of Fe(II) may represent an important source of Fe influencing phytoplankton growth in coastal seawater.

引用

页码：41 / 50

页数：10

共 27 条

[1] EVIDENCE FOR REDOX CYCLING OF IRON IN ATMOSPHERIC WATER DROPLETS [J].