Direct and indirect pCO2 measurements in a wide range of pCO2 and salinity values (the Scheldt estuary)
Direct and indirect pCO2 measurements in a wide range of pCO2 and salinity values (the Scheldt estuary)
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DOI：
10.1023/a:1015251010481
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发表时间：
2001-12-01
影响因子：
1.6
通讯作者：
Borges, AV
中科院分区：
文献类型：
--
作者：
Frankignoulle, M;Borges, AV
最近的改进，在这两个红光谱和平衡技术允许确定，第一次，pCO（2）使用同时和连续的直接和间接的方法在河口，其中pCO（2）值范围从500到8500 μ atm和盐度从0到30。结果表明，两种方法在整个河口的一致性非常好（r（2）= 0.999，n = 1075，p < 0.0001）。因此，NBS（美国国家标准局）标度虽然不适用于海水样品，但适用于河口沃茨，可以放心地用于计算pCO（2）。
Recent improvements in both Infra-red spectroscopy and equilibrator techniques have allowed to determine, for the first time, pCO(2)using simultaneously and continuously both the direct and indirect methods in an estuary where pCO(2) values range from 500 to 8500 muatm and salinity from 0 to 30. Our results show that both methods are in excellent agreement in the whole estuary (r(2) = 0.999, n = 1075, p < 0.0001). Thus, the NBS (US National Bureau of Standards) scale, although inadequate for seawater samples, is appropriate for estuarine waters and can be applied with confidence to calculate pCO(2).