...重金属(as Pb)10mg/Kg 含量(C2H3NaO2)；干燥品计)99.0-101.0% 镁(Mg)0.002% 钙(Ca)0.005% 无水醋酸钠(试剂级) 游离碱 ( as NaOH )0.2% 钾化合物To pass test 磷酸盐(PO4)0.001% 重金属(as Pb)0.001% 干燥失重(120°C)1.0% 干燥失重(120°C)1.0% 氯化物(Cl)0.035...
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Thus, we studied the preparation of porous carbons using oil residues as raw materials by traditional steam activation, NaOH activation and template-like method respectively.
因此，本文以石油渣油为原料，通过水蒸气活化、化学活化和类模板法等制备成多孔炭材料。
The factors such as temperature and flow rate during enrichment, temperature and flow rate during desorption and concentrations of NaOH and luminol affecting CL intensities were studied.
研究了富集时温度和流速、解吸附时的温度和流速、氢氧化钠浓度和鲁米诺浓度等影响因素对化学发光强度的影响。
After ALL the NaOH has dissolved, top up to 250 ml with fresh methanol, as there may be some evaporation during mixing.
等氢氧化钠完全溶解后，倒入少量新鲜甲醇至250毫升，来弥补溶解过程中挥发掉的甲醇。
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