SPE 柱净化(Copure® 对乙酰氨基酚专用柱)活化:对乙酰氨基酚专用柱使用前用 5 mL 甲醇、5 mL 水活化。上样和洗脱:将提取备用液过柱,弃去流出液,加入 5 mL 5%甲醇水溶液淋洗,弃去淋洗液,抽干小柱;加入 8 mL甲醇洗脱,收集洗脱液(上样、洗脱过程保持流速 1 mL/min)。重新溶解:洗脱液在 40℃下氮吹至近干,1 mL 甲醇定容,0.22 µ m 滤膜过滤,滤液待上机测试。
Isothermal calorimetry is a viable technique for determining the quality of soil through respiration measurements. Substrate induced respiration follows the carbon in the soil and can be used to determine carbon incorporation. Additional experimental conditions can further characterize the soil through the idea of calorespirometry. The findings via calorimetry in the references show a direct correlation between calorimetry results and soil quality.
、SPE 柱净化(Copure® ATO,2000 mg/12 mL)活化:抗氧化剂专用柱使用前用 5 mL 甲醇、5 mL 乙腈活化。上样和洗脱:往固相萃取柱中加入待净化液,收集流出液;加入 10 mL 乙腈 - 甲醇溶液(2:1, v/v)洗脱,收集洗脱液,合并。重新溶解:洗脱液于 40℃下旋蒸至近干,用 1 mL 乙腈溶解,经 0.22 µ m 滤膜过滤,供高效液相色谱测定。