Vanillic acid concentrations from ice cores, Tunu, Northeastern Greenland, 268-2013

This dataset contains vanillic acid measurements from the Tunu ice core from Northeastern Greenland. The ice core was drilled to a depth of 212 m in 2013. The ice core covers the past 1700 years (Mernild et al., 2015; Sigl et al., 2013, 2015). The dataset contains the depth ranges and age ranges of each sample and vanillic acid concentrations reported in units of parts-per-billion by weight (ppb). Samples were analyzed using ion chromatography with electrospray tandem mass spectrometry in negative ion mode. Vanillic acid was measured at mass transition 167-108. The limit of detection was 0.005 ppb.

本数据集包含格陵兰东北部图努（Tunu）冰芯的香草酸（vanillic acid）测量数据。该冰芯于2013年钻探至212米深度，其记录覆盖过去1700年（Mernild等，2015；Sigl等，2013、2015）。数据集包含每个样品的深度范围、年龄范围，以及以重量十亿分率（parts-per-billion by weight，ppb）为单位报告的香草酸浓度。样品采用离子色谱联用负离子模式电喷雾串联质谱法进行分析，香草酸的特征质荷比跃迁为167→108，检出限为0.005 ppb。