5results about How to "Detection interference is small" patented technology

This invention discloses a cell sample viability detection kit and method based on mass spectrometry flow cytometry. The cell sample viability detection kit based on mass spectrometry flow cytometry includes separately packaged solutions C, P, Pd, F, M, and D; solution C includes bovine serum albumin and phosphate buffer; solution P includes phosphate buffer; solution Pd includes palladium dichloride and double-distilled water. The effective component of palladium dichloride, palladium, has the following natural isotope abundances: isotope 102 The relative abundance of Pd was 1.02%. 104 Pd was 11.14%. 105 Pd is 22.33%. 106 Pd is 27.33%. 108 Pd was 26.46%. 110 Pd is 11.72%; Solution F includes paraformaldehyde and phosphate buffer; Solution M includes methanol; Solution D includes... 191 / 193 Ir, paraformaldehyde, and phosphate buffer. This invention's kit features high detection sensitivity, reduced detection interference, improved experimental efficiency, and reliable results.

The present application relates to the technical field of data monitoring, and particularly relates to a gantry machining center tool wear state intelligent monitoring system based on multi-source information fusion; suspected abnormal points are obtained according to data difference characteristics and continuous trend characteristics of data points in a monitoring data sequence; neighborhood clustering degrees are obtained according to number characteristics and time interval characteristics of suspected abnormal points in a point cluster where the suspected abnormal points are located; real wear abnormal degrees are obtained according to data point number characteristics of the same value in the history of the suspected abnormal points and the neighborhood clustering degrees; tool wear characteristic values at any moment are obtained according to real wear abnormal degrees of suspected abnormal points in all dimensions; and nearest neighbor values in the LOF algorithm are adjusted according to the tool wear characteristic values at any moment. According to the monitoring data sequence in all dimensions and the adaptive nearest neighbor value, the tool wear state is judged through the LOF algorithm, and the accuracy of the wear state monitoring is improved.

This invention provides a graphene three-electrode coplanar standard electrode and its application. Specifically, three coplanar electrodes are fixedly disposed on an electrode substrate, which are, from left to right, a first electrode, a second electrode, and a third electrode. The first electrode includes a first pin (1), a first guide portion (4), and a first detection layer (7); the second electrode includes a second pin (2) and a second guide portion (5); and the third electrode includes a third pin (3), a third guide portion (6), and a second detection layer (8). An electrode modification hole (9) is formed by drilling a hole in the electrode substrate and is placed directly above the second electrode. A through hole (10) is provided in the middle of the second guide portion (5). A back electrode is disposed on the back side of the electrode substrate, specifically including a back pin (11), a back guide portion (12), and an electrode modification ring (13). The back guide portion (12) is provided with a through hole (10), and the electrode modification hole (9) is provided inside the inner ring of the electrode modification ring (13).

The application discloses a kind of energy storage battery state evaluation method and system based on quartz enhanced photoacoustic spectroscopy, belong to energy storage detection technical field.The method is applicable to the signal evaluation module of energy storage battery state evaluation system;Energy storage battery state evaluation system further includes synthetic ester coolant circulation module, degassing sampling module and quartz enhanced photoacoustic spectroscopy detection module;The energy storage battery to be evaluated is immersed in synthetic ester coolant;The method includes after the gas evolved in degassing sampling module is transported to detection module and output modulated laser signal, the resonant electric signal formed is phase-locked demodulated to obtain photoacoustic amplitude and phase information;Resonant frequency and quality factor are obtained based on phase information, and temperature parameter is obtained according to mapping model;According to temperature parameter and the gas concentration obtained by photoacoustic amplitude and quality factor compensation calculation, state evaluation characteristic quantity is constructed to carry out evaluation, and energy storage battery state evaluation result is obtained, by implementing the present application, the problem of low accuracy of prior art evaluation is solved.

A peanut-shaped fiber optic biosensor for chloramphenicol measurement based on the SPR effect includes a broadband light source (SLED), a sensing structure, and an OSA (Optical Spectrum Analysis System). The sensing structure includes a single-mode fiber, a peanut-shaped fiber, a Bragg fiber grating (FBG), and a surface functional modification region. The surface functional modification region includes an APTES-modified region, a gold film, and a CAP-BSA coupling region. This invention utilizes a peanut-shaped structure to couple more light from the single-mode fiber core into the cladding, enhancing the SPR effect and improving sensitivity. Specific detection of chloramphenicol is achieved through the CAP-BSA coupling region on the fiber surface. Temperature testing is performed using a cascaded Bragg fiber grating to establish a temperature-chloramphenicol concentration sensitivity coefficient matrix, reducing temperature interference with chloramphenicol concentration detection, resolving cross-sensitivity issues, and improving accuracy. This invention features a compact structure, simple fabrication, high accuracy, and high sensitivity.