The hydrogen isotopic composition of lipids (δ²H_lipid) is widely used in food science and as a proxy for past hydrological conditions. Determining the δ²H values of large, well‐preserved triacylglycerides and other microbial lipids, such as glycerol dialkyl glycerol tetraether (GDGT) lipids, is thus of widespread interest but has so far not been possible due to their low volatility which prohibits analysis by traditional gas chromatography pyrolysis isotope ratio mass spectrometry (GC/P/IRMS).

中文翻译：

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高温气相色谱联用同位素比质谱法测定高分子量脂质的 δ2H 值

脂质的氢同位素组成（δ ² H_脂质）广泛用于食品科学并作为过去水文条件的代表。因此，确定大的、保存完好的三酰基甘油酯和其他微生物脂质（如甘油二烷基甘油四醚 (GDGT) 脂质）的 δ ² H 值受到广泛关注，但由于它们的低挥发性，这阻碍了分析传统的气相色谱热解同位素比质谱 (GC/P/IRMS)。