Abstract: The present disclosure provides a detection system and a detection method for a composite detector, comprising a composite detector, a constant-temperature box, a smoke generator, a standard gas storage tank, a gas collection device and a laser Raman spectroscopy analyzer; the constant-temperature box is sealed, and both the composite detector and the gas collection device are arranged in the constant-temperature box; the smoke generator, the standard gas storage tank and the laser Raman spectroscopy analyzer are all arranged outside the constant-temperature box; the constant-temperature box, the smoke generator, and the standard gas storage tank are used to simulate the environment battery thermal runaway, the laser Raman spectroscopy analyzer obtains a first detection data of gas, the composite detector obtains a second detection data, by comparing and analyzing the first detection data with the second detection data, the composite detector is calibrated and a qualitative and quantitative detection result i

Abstract: The invention provides an electroslag fusion process for manufacturing a blade slab having a large curved surface, and it is more particularly effectively in making a blade slab which has a big width-to-thickness ratio, a large difference between the thin and the thick edges and a large curved surface. Firstly, dividing the blade slab into two or three regions according to the external shape and the sectional size of the blade slab, wherein the region which has difficulty in unilateral or bilateral mold-filling is pre-fabricated by the electroslag casting technology to produce a pre-fabricated curved slab, and then it is placed in advance in a side of an internal cavity of a mold, and then fusing the molten metal melted from a consumable electrode and one or two electroslag pre-fabricated slabs which are placed in advance in the mold by utilizing the electroslag fusion process, so as to produce the blade slab having a large curved surface.

Abstract: The invention discloses an erythropoietin receptor modified electrode, which is a glassy carbon electrode with erythropoietin receptor as recognition element fixed onto the electrode surface via ZnO sol-gel. The modified electrode can be prepared easily, and its performance is stable. After 50-day storage in the dark at 4° C., its response current remained approximately 77% of the original value. An electrochemical biosensor using this modified electrode as working electrode, a platinum electrode as counter electrode, a saturated calomel electrode as reference electrode, and 2 mmol/L K3[Fe(CN)6]—K4[Fe(CN)6]phosphate buffer as the test base solution, can detect erythropoietin (EPO) and/or recombinant human erythropoietin (rhEPO) in a fast, specific, and sensitive manner, with a linear range of 5 pg/L-500 ng/L and a limit of detection of 0.5 pg/L. In particular, according to peak potential differences, the biosensor allows accurate discrimination of EPO and rhEPO.

Abstract: The invention discloses an erythropoietin receptor modified electrode, which is a glassy carbon electrode with erythropoietin receptor as recognition element fixed onto the electrode surface via ZnO sol-gel. The modified electrode can be prepared easily, and its performance is stable. After 50-day storage in the dark at 4° C., its response current remained approximately 77% of the original value. An electrochemical biosensor using this modified electrode as working electrode, a platinum electrode as counter electrode, a saturated calomel electrode as reference electrode, and 2 mmol/L K3[Fe(CN)6]-K4[Fe(CN)6] phosphate buffer as the test base solution, can detect erythropoietin (EPO) and/or recombinant human erythropoietin (rhEPO) in a fast, specific, and sensitive manner, with a linear range of 5 pg/L-500 ng/L and a limit of detection of 0.5 pg/L. In particular, according to peak potential differences, the biosensor allows accurate discrimination of EPO and rhEPO.