Dissolved munition compounds in the water column of southwestern Baltic Sea during POSEIDON cruise POS530 in October 2018@en

Cruise POS530 (R/V Poseidon) sampled the water column throughout German territorial waters of the southwest Baltic Sea during 01-21 October 2018. The current dataset contains concentrations of dissolved munition compounds from Niskin bottle rosette casts between sea surface and seafloor. Vertical sampling resolution varied among stations, with a maximum of 9 sampling depths. Dissolved explosives in the samples were measured following Gledhill et al. (2019). Briefly, discrete samples (1 L) were preconcentrated onboard using solid-phase extraction. Target compounds were eluted with acetonitrile, further concentrated by evaporation, and measured by ultra-high performance liquid chromatography and high resolution heated electrospray ionization mass spectrometry.POS530号科考航次（海神号科考船，R/V Poseidon）于2018年10月1日至21日期间，在西南波罗的海的德国领海范围内对整个水体柱进行了采样。本数据集包含了海面至海底之间，通过尼斯金采水器组（Niskin bottle rosette）各站位采集的水样中的溶解弹药化合物浓度。各站位的垂直采样分辨率存在差异，最大采样深度层数可达9层。样品中的溶解炸药浓度参照Gledhill等人（2019）的方法进行测定。简要而言，每份离散水样（1升）在船载平台上采用固相萃取（solid-phase extraction）法完成预浓缩；目标化合物经乙腈洗脱后，通过蒸发进一步浓缩，最终采用超高效液相色谱（ultra-high performance liquid chromatography）与高分辨加热电喷雾电离质谱法（high resolution heated electrospray ionization mass spectrometry）进行检测。