66results about How to "Rapid Qualitative Detection" patented technology

The invention discloses a mass-spectrum rapid analysis method for the pesticide residue in fruits and vegetables. A triple quadrupole mass spectrum is adopted as an analyzer, a discharging low-temperature plasma is used as a mass spectrum ionization source, and a sample is placed on a continuous sample introduction belt in front of the low-temperature plasma ionization source; a heating lamp is used for performing rapid non-contact thermal analysis of the sample; the sample is detected in an anion detection mode and compared with the early established spectrogram in a pesticide standard quality mass spectrum library to rapidly judge whether the residue of corresponding pesticide exists in the sample; the method disclosed by the invention improves the qualitative analysis ability and signal strength of the device; and compared with the traditional pesticide residue detection method, the method has the advantages of simple pretreatment, small dosage of organic solvent, short detection period of single sample and the like.

The invention discloses a detection method for activity of telomerase. The method comprises the following steps: step 1, extracting telomerase in to-be-detected cells by using the CHAPS method; step 2, subjecting a captured substrate and the to-be-detected telomerase to extension and subjecting an extension product and a reporter label solution to a hybridization reaction, wherein the captured substrate is prepared by connecting a telomerase substrate to the surface of a gold shell-coated ferriferrous oxide nanoparticle, and the reporter label solution is prepared by connecting a telomere complementary sequence and a Raman molecule to the surface of a spherical gold nanoparticle; and step 3, observing the color of a hybridization reaction product by using colourimetry or carrying out dual signal path detection by using SERS technology so as to obtain SERS signals. According to the invention, colourimetry and SERS technology are integrated into a same telomerase activity detection system, colourimetry is used to realize rapid qualitative analysis of a sample, then the SERS technology is used to realize accurate quantitative analysis of the sample, and combination of the two methods enables rapid high-sensitivity telomerase activity detection to be realized.