Applications of pyrolysis-gas chromatography and pyrolysis capillary gas chromatography in explosive and propellant analysis are reviewed, including the identification of explosives and propel- lants, the investigatio...Applications of pyrolysis-gas chromatography and pyrolysis capillary gas chromatography in explosive and propellant analysis are reviewed, including the identification of explosives and propel- lants, the investigation of the thermal decomposition of nitrocellulose (NC), cyclotetramethylene tetranitramine (HMX)and cyclotrimethylene trinitramine (RDX), and the study of the wear- reducing mechanism of polyurethane additive in propellant gain.展开更多
【目的】从磷矿区植物根围土中,筛选出具有较高溶磷能力的菌株及优化溶磷培养条件.【方法】通过稀释凃板法分离、筛选菌株,并进行全细胞脂肪酸分析和16S r DNA测序鉴定;正交试验优化溶磷培养条件.【结果和结论】筛选出22株具有溶磷能力...【目的】从磷矿区植物根围土中,筛选出具有较高溶磷能力的菌株及优化溶磷培养条件.【方法】通过稀释凃板法分离、筛选菌株,并进行全细胞脂肪酸分析和16S r DNA测序鉴定;正交试验优化溶磷培养条件.【结果和结论】筛选出22株具有溶磷能力的菌株,其中菌株YN2014102的溶磷能力最强,在10 g·L-1的磷矿粉培养基中能释放244.75 mg·L-1水溶性磷.经全细胞脂肪酸分析和16S r DNA测序,该菌株被鉴定为洋葱伯克霍尔德菌.正交试验的结果表明,在质量浓度10 g·L-1的磷矿粉、28℃、摇床转速为180 r·min-1的条件下培养5 d,溶磷效果最好,达277.08 mg·L-1.展开更多
文摘Applications of pyrolysis-gas chromatography and pyrolysis capillary gas chromatography in explosive and propellant analysis are reviewed, including the identification of explosives and propel- lants, the investigation of the thermal decomposition of nitrocellulose (NC), cyclotetramethylene tetranitramine (HMX)and cyclotrimethylene trinitramine (RDX), and the study of the wear- reducing mechanism of polyurethane additive in propellant gain.