Detection of geothermal phosphite using high-performance liquid chromatography.
Detection of geothermal phosphite using high-performance liquid chromatography.
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DOI：
10.1021/es901469t
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发表时间：
2009-10-15
影响因子：
11.4
通讯作者：
Foster, Krishna L.
中科院分区：
文献类型：
--
作者：
Pech, Herbe;Henry, Amanda;Khachikian, Crist S.;Salmassi, Tina M.;Hanrahan, Grady;Foster, Krishna L.
人们对启动磷的生物利用度的前生物机制知之甚少，磷是生命所必需的元素。更好地了解磷形态在现代地球环境中的代表早期地球，可能有助于阐明生物可利用磷的起源。本文介绍了第一次定量测量亚磷酸盐在一个原始地热池代表早期地球。亚磷酸盐和磷酸盐最初确定和量化的地热池和流样品在热溪峡谷附近的猛犸湖，加州使用抑制电导率离子色谱法。结果证实地热池中存在0.06 ± 0.02 μM的亚磷酸盐和0.05 ± 0.01 μM的磷酸盐。在流中，亚磷酸盐浓度低于检测限（0.04 μM），磷酸盐测定值为1.06 ± 0.36 μM。使用化学氧化和离子色谱/质谱法证实了亚磷酸盐在地热池中的存在。
Little is known about the pre-biotic mechanisms that initiated the bioavailability of phosphorus, an element essential to life. A better understanding of phosphorus speciation in modern earth environments representative of early earth, may help to elucidate the origins of bioavailable phosphorus. This paper presents the first quantitative measurements of phosphite in a pristine geothermal pool representative of early earth. Phosphite and phosphate were initially identified and quantified in geothermal pool and stream samples at Hot Creek Gorge near Mammoth Lakes, California using suppressed conductivity ion chromatography. Results confirmed the presence of 0.06 ± 0.02 μM of phosphite and 0.05 ± 0.01 μM of phosphate in a geothermal pool. In the stream, phosphite concentrations were below detection limit (0.04 μM) and phosphate was measured at 1.06 ± 0.36 μM. The presence of phosphite in the geothermal pool was confirmed using both chemical oxidation and ion chromatography/mass spectrometry.
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DOI：
10.1023/a:1006700512902
发表时间：
2000-10-01
期刊：
ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE
影响因子：
--
作者：
De Graaf, RM;Schwartz, AW
通讯作者：
Schwartz, AW
影响因子：
11.4
作者：
Glindemann, D;Edwards, M;Morgenstern, P
通讯作者：
Morgenstern, P
影响因子：
64.8
作者：
Schink, B;Friedrich, M
通讯作者：
Friedrich, M
DOI：
10.1023/a:1006622900660
发表时间：
1999-12-01
期刊：
ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE
影响因子：
--
作者：
Glindemann, D;de Graaf, RM;Schwartz, AW
通讯作者：
Schwartz, AW
影响因子：
2
作者：
Bristow, AWT;Nichols, WF;Conway, B
通讯作者：
Conway, B