通过条件实验，确定影响含碳酸盐湖泊沉积物有机碳分析的主要因素是清洗操作和空气中吸湿恒重操作。真空干燥法与清洗烘干法的结果一致。较合理的有机碳分析是用约４０～６０倍体积的１Ｎ盐酸在超声振荡作用下将无机碳清除，过滤清洗至无氯离子，并在分析前于空气中吸湿平衡，所用样品重量之差应小于５％，分析相对误差为±１４％。 Through the experimental conditions to determine the main factors that affect the analysis of organic carbon in carbonate sediment-laden sediments are the cleaning operation and the moisture absorption constant in the air. Vacuum drying method is consistent with the results of cleaning and drying method. More reasonable organic carbon analysis is the use of about 40 to 60 times the volume of 1N hydrochloric acid under ultrasonic oscillation of inorganic carbon removal, filtered to clean chlorine-free ions, and in the air before moisture absorption equilibrium, sample weight difference should be used Less than 5%, the relative error of analysis is ± 14%.