目的建立气相色谱(GC)测定四川姜黄片中14种农残含量的分析方法。方法以α-BHC、五氯硝基苯、β-BHC、γ-BHC、δ-BHC、三氯杀螨醇、4,4-DDE、4,4-DDD、2,4-DDT、4,4-DDT、氯菊酯、氯氰菊酯、氰戊菊酯、溴氯菊酯为标准物质,Inert Cap 1...目的建立气相色谱(GC)测定四川姜黄片中14种农残含量的分析方法。方法以α-BHC、五氯硝基苯、β-BHC、γ-BHC、δ-BHC、三氯杀螨醇、4,4-DDE、4,4-DDD、2,4-DDT、4,4-DDT、氯菊酯、氯氰菊酯、氰戊菊酯、溴氯菊酯为标准物质,Inert Cap 17为分离柱,以初始温度60℃,30℃/min升至180℃,再以5℃/min升至220℃,2℃/min升至250℃,5℃/min升至270℃,保持35 min为程序升温。四川姜黄片经粉碎,0.1%乙酸乙腈溶液提取,氮气浓缩至近干,正己烷稀释定容,浓硫酸磺化的条件下以外标法定量。结果农残色谱峰的分离度均1.5,理论塔板数均≥10 000,加标回收率70.3%~118.5%,农残检出限0.078~2.22μg/kg。结论该方法前处理操作过程简单,结果重现性好,灵密度高,分离度好,回收率符合要求,适用于四川姜黄片中14种农残含量的测定。展开更多
If we consider the finite actions of electromagnetic fields in Hamiltonian regime and use vector bundles of geodesic in movement of the charges with a shape operator (connection) that measures the curvature of a geome...If we consider the finite actions of electromagnetic fields in Hamiltonian regime and use vector bundles of geodesic in movement of the charges with a shape operator (connection) that measures the curvature of a geometrical space on these geodesic (using the light caused from these points (charges) acting with the infinite null of gravitational field (background)) we can establish a model of the curvature through gauges inside the electromagnetic context. In partular this point of view is useful when it is about to go on in a quantized version from the curvature where the space is distorted by the interactions between particles. This demonstrates that curvature and torsion effect in the space-time are caused in the quantum dimension as back-reaction effects in photon propagation. Also this permits the observational verification and encodes of the gravity through of light fields deformations. The much theoretical information obtained using the observable effects like distortions is used to establish inside this Lagrangian context a classification of useful spaces of electro-dynamic configuration for the description of different interactions of field in the Universe related with gravity. We propose and design one detector of curvature using a cosmic censor of the space-time developed through distortional 3-dimensional sphere. Some technological applications of the used methods are exhibited.展开更多
文摘目的建立气相色谱(GC)测定四川姜黄片中14种农残含量的分析方法。方法以α-BHC、五氯硝基苯、β-BHC、γ-BHC、δ-BHC、三氯杀螨醇、4,4-DDE、4,4-DDD、2,4-DDT、4,4-DDT、氯菊酯、氯氰菊酯、氰戊菊酯、溴氯菊酯为标准物质,Inert Cap 17为分离柱,以初始温度60℃,30℃/min升至180℃,再以5℃/min升至220℃,2℃/min升至250℃,5℃/min升至270℃,保持35 min为程序升温。四川姜黄片经粉碎,0.1%乙酸乙腈溶液提取,氮气浓缩至近干,正己烷稀释定容,浓硫酸磺化的条件下以外标法定量。结果农残色谱峰的分离度均1.5,理论塔板数均≥10 000,加标回收率70.3%~118.5%,农残检出限0.078~2.22μg/kg。结论该方法前处理操作过程简单,结果重现性好,灵密度高,分离度好,回收率符合要求,适用于四川姜黄片中14种农残含量的测定。
文摘If we consider the finite actions of electromagnetic fields in Hamiltonian regime and use vector bundles of geodesic in movement of the charges with a shape operator (connection) that measures the curvature of a geometrical space on these geodesic (using the light caused from these points (charges) acting with the infinite null of gravitational field (background)) we can establish a model of the curvature through gauges inside the electromagnetic context. In partular this point of view is useful when it is about to go on in a quantized version from the curvature where the space is distorted by the interactions between particles. This demonstrates that curvature and torsion effect in the space-time are caused in the quantum dimension as back-reaction effects in photon propagation. Also this permits the observational verification and encodes of the gravity through of light fields deformations. The much theoretical information obtained using the observable effects like distortions is used to establish inside this Lagrangian context a classification of useful spaces of electro-dynamic configuration for the description of different interactions of field in the Universe related with gravity. We propose and design one detector of curvature using a cosmic censor of the space-time developed through distortional 3-dimensional sphere. Some technological applications of the used methods are exhibited.
