极地研究

极地研究 ›› 1993, Vol. 4 ›› Issue (2-English): 62-74.

• 目次 • 上一篇    

CONCENTRATIONS AND DISTRIBUTIONS OF FREE AMINO ACIDS IN SEA AND LAKE ICE CORE OF ANTARCTICA

Yang Hefu1, Andrew R. Mctaggart2 and H. Burton2   

  1. 1Second Institute of Oceanography, SOA, Hangzhou 310012 2Australia Antarctic Division, Channel Highway, Kingston, Tasmania
  • 出版日期:1943-06-30 发布日期:1943-06-30
  • 通讯作者: Yang Hefu

CONCENTRATIONS AND DISTRIBUTIONS OF FREE AMINO ACIDS IN SEA AND LAKE ICE CORE OF ANTARCTICA

Yang Hefu1, Andrew R. Mctaggart2 and H. Burton2   

  1. 1Second Institute of Oceanography, SOA, Hangzhou 310012 2Australia Antarctic Division, Channel Highway, Kingston, Tasmania
  • Online:1943-06-30 Published:1943-06-30
  • Contact: Yang Hefu

PDF (PC)

934

被引次数

1

摘要：

The sea ice core (1. 6m) and lake ice core (1. 5m) were taken respectively from sea sampling site and Ace Lake near Davis Station, Vestfold Hills, Antarctica in November and October, 1988. The concentrations of amino acids in each 10cm of ice cores were determined by High Pressure Liquid Chromatography (HPLC). The results showed that the concentrations of amino acids revealed seasonal variation during the year. The highest concentration of amino acids, which was 30. 92 /μmol/ml, were found in the bottom of sea ice core, and it was approximately 45 μmol/ml in the lake ice core. The lowest concentration was approximately 8. 0μmol/ml which is presented in surface of the sea ice core, but it was 14.0μmol/ml which was found in 60cm section of lake ice core. The seasonal variation process of concentration of amino acids were much similar to that of phytoplankton cells number in sea ice core, and the distribution and seasonal variation rate of individual amino acids were also much similar in each ice core sections. We suggest that the uniform spectrum of amino acids is probably derived from a peptide cell source and those amino acids were not utilized by organism.

关键词: amino acids, HPLC, ice core, Antarctica

Abstract:

The sea ice core (1. 6m) and lake ice core (1. 5m) were taken respectively from sea sampling site and Ace Lake near Davis Station, Vestfold Hills, Antarctica in November and October, 1988. The concentrations of amino acids in each 10cm of ice cores were determined by High Pressure Liquid Chromatography (HPLC). The results showed that the concentrations of amino acids revealed seasonal variation during the year. The highest concentration of amino acids, which was 30. 92 /μmol/ml, were found in the bottom of sea ice core, and it was approximately 45 μmol/ml in the lake ice core. The lowest concentration was approximately 8. 0μmol/ml which is presented in surface of the sea ice core, but it was 14.0μmol/ml which was found in 60cm section of lake ice core. The seasonal variation process of concentration of amino acids were much similar to that of phytoplankton cells number in sea ice core, and the distribution and seasonal variation rate of individual amino acids were also much similar in each ice core sections. We suggest that the uniform spectrum of amino acids is probably derived from a peptide cell source and those amino acids were not utilized by organism.

Key words: amino acids, HPLC, ice core, Antarctica