Abstract: Disclosed are a device and method for detecting defects of a high-voltage cable cross-bonded grounding system. The method selects a protective grounding box of a cross-bonded grounding system, respectively connects a signal excitation coupler to A-phase, B-phase and C-phase coaxial cables of the protective grounding box, selects a stable signal with a frequency different from a power frequency or a field interference frequency, and tests effective current values and phases responded by the A-phase, B-phase and C-phase coaxial cables when the stable signal with the frequency F1 is injected into the A-phase, B-phase and C-phase coaxial cables of the protective grounding box; and obtains resistances and inductances of branch circuits of the cable cross-bonded grounding system by calculation according to measurement data, and determines if the cable cross-bonded grounding system has a connection defect.

Abstract: Disclosed are a device and method for detecting defects of a high-voltage cable cross-bonded grounding system. The method comprises: selecting a protective grounding box of a cross-bonded grounding system, respectively connecting a signal excitation coupler to A-phase, B-phase and C-phase coaxial cables of the protective grounding box, selecting a stable signal with a frequency different from a power frequency or a field interference frequency, and testing effective current values and phases responded by the A-phase, B-phase and C-phase coaxial cables when the stable signal with the frequency F1 is injected into the A-phase, B-phase and C-phase coaxial cables of the protective grounding box in a coupled manner; and obtaining resistances and inductances of branch circuits of the cable cross-bonded grounding system by calculation according to measurement data, and determining if the cable cross-bonded grounding system has a connection defect.

Abstract: Disclosed is N-formyl vortioxetine, and also disclosed is a method for preparing the N-formyl vortioxetine and a stable solid preparation of vortioxetine.

Abstract: Disclosed is N-formyl vortioxetine, and also disclosed is a method for preparing the N-formyl vortioxetine and a stable solid preparation of vortioxetine.

Abstract: Disclosed is a preparation method for an azacitidine for injection, wherein each injection vial of azacitidine for injection contains 100 mg of azacitidine and 100 mg of mannitol. The preparation method comprises the steps of measuring 80% of the total volume of water for injection at a temperature of 2-6° C.; adding mannitol, and stirring to completely dissolved at a temperature of 2-6° C.; adding azacitidine, stirring to completely dissolved at a temperature of 2-6° C. to obtain an azacitidine solution for injection; filling each injection vial with 23 ml azacitidine solution for injection after filtration; freeze-drying at a preset temperature; and stoppering, capping and packaging after nitrogen filling. The preparation method has the advantages of a simple process, low energy consumption, high production efficiency and stable product quality.

Abstract: Disclosed is a preparation method for an azacitidine for injection, wherein each injection vial of azacitidine for injection contains 100 mg of azacitidine and 100 mg of mannitol. The preparation method comprises the steps of measuring 80% of the total volume of water for injection at a temperature of 2-6° C.; adding mannitol, and stirring to completely dissolved at a temperature of 2-6° C.; adding azacitidine, stirring to completely dissolved at a temperature of 2-6° C. to obtain an azacitidine solution for injection; filling each injection vial with 23 ml azacitidine solution for injection after filtration; freeze-drying at a preset temperature; and stoppering, capping and packaging after nitrogen filling. The preparation method has the advantages of a simple process, low energy consumption, high production efficiency and stable product quality.