title: [Construction and application of an onboard absorption analyzer device for CDOM].
abstract: Colored dissolved organic matter (CDOM) plays an important role in marine ecosystems. In order to solve the current problems in measurement of CDOM absorption, an automated onboard analyzer based on liquid core waveguides (Teflon AF LWCC/LCW) was constructed. This analyzer has remarkable characteristics including adjusted optical pathlength, wide measurement range, and high sensitivity. The model of filtration and injection can implement the function of automated filtration, sample injection, and LWCC cleaning. The LabVIEW software platform can efficiently control the running state of the analyzer and acquire real time data including light absorption spectra, GPS data, and CTW data. By the comparison experiments and shipboard measurements, it was proved that the analyzer was reliable and robust.
authors.affiliation: State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China. linjunfang301@163.com
authors.forename: Jun-Fang
authors.initials: JF
authors.lastname: Lin
authors.forename: Zhao-Hua
authors.initials: ZH
authors.lastname: Sun
authors.forename: Wen-Xi
authors.initials: WX
authors.lastname: Cao
authors.forename: Shui-Bo
authors.initials: SB
authors.lastname: Hu
authors.forename: Zhan-Tang
authors.initials: ZT
authors.lastname: Xu