The basic working principle of UV spectrophotometer: The basic working principle of an ultraviolet spectrophotometer is similar to that of an infrared spectrometer. A certain frequency of ultraviolet-visible light is used to irradiate the analyzed organic material, causing the valence electron transition in the molecule, which will be selectively absorbed. A group absorbs the spectrum as a function of wavelength and reflects the characteristics of the sample. In the UV-Vis range, for a specific wavelength, the degree of absorption is proportional to the concentration of the component in the sample, so the measurement spectrum can be qualitatively analyzed, and according to the comparison of absorption with a known concentration of the standard, Quantitative analysis. UV spectrophotometer main use: The UV-visible spectrometer involves a wavelength range of 0.2--0.8 microns (corresponding to wavenumbers of 50000-12500 cm-1), which has been widely used in organic chemistry research. It is commonly used for substance identification, purity check, and organic molecular structure research. In the quantitative aspect, the content of each component in the more complex structures and mixtures can be determined. It can also determine the dissociation constant of the substance, the stability constant of the complex, the identification of the molecular weight of the substance and the indicated end point in the microtitration, and the high performance liquid chromatography. As a detector and so on. Determination of niobium in pure copper for determination of mercury in tea Determination of niobium in pure aluminum metal Determination of hafnium in pure nickel metal Determination of hafnium in crude lead Determination of palladium in catalyst, platinum and rhodium Determination of zinc in rice powder Determination of soda Determination of arsenic in rice by determination of manganese in low-alloy steel Determination of manganese and molybdenum in groundwater Determination of copper in groundwater Determination of cobalt in geological samples Determination of chromium (VI) and total chromium in electroplating wastewater, determination of cadmium in copper Determination of silver in fixing solution Determination of monazite Determination of mercury in mercury leaching solution of waste mercury hydride in middle helium group Determination of rare earth, gold, cadmium, copper in waste water group Determination of mercury in leaching solution of waste mercury hydride catalyst Vanadium, cobalt, aluminum, molybdenum, tantalum, titanium, tin, antimony Determination of Total Rare Earths Determination of Strontium in Superalloys Determination of Vanadium, Cadmium, Mercury, Cobalt, and Nickel in Industrial Wastewater Determination of Strontium in Cereals Waste Determination of Strontium in Silicon Food Determination of Silicon Germanium Inoculants Determination of Germanium in Silicon-Magnesium Alloys Determination of Precious Metals Secondary Determination of Palladium in Alloys Determination of Cobalt in Copper Samples Determination of Cobalt in Catalysts for Determination of Total Molybdenum, Total Rare Earths, Determination of Molybdenum in Alloys Determination of Mercury in River Water Determination of Zinc in Nutritional Products of Black Rice, Determination of Cadmium in Environmental Water Samples Determination of NO2- in Environmental Water Oil Pressure Sensor,Auto Sensors,Engine Oil Pressure Sensor,Oil Pressure Sensor For Car Wenzhou Yuanda Electronic Technology Co., Ltd , https://www.wzyddz.com
Determination of niobium in mixed rare earth oxides Determination of niobium in mixed rare earth oxides Determination of nickel in metallic zinc Determination of niobium in metallic zinc Group of rare earths, niobium, tantalum, niobium, tantalum and total rare earths in rare earths and heavy rare earths Determination of lead and zinc in clinical samples Determination of iron in magnesite Determination of rare earth, vanadium, magnesium, strontium, titanium, iron, copper, zinc, bismuth and cadmium in aluminum alloys
Determination of niobium in fly ash and determination of niobium in magnesium alloy Determination of nitric oxide in flour Determination of niobium in molybdenum-titanium-zirconium-niobium alloy Determination of urinary protein Determination of niobium in nickel-base alloy Group Determination of rare earth and niobium Determination of palladium in nickel-aluminum catalyst Sputtering Determination of Lead in Glucose Determination of Zn in Glucose Determination of Strontium Ferric Oxide in Lead Alloy Determination of Lead in Lead Alloys Determination of Lead and Cadmium Determination of Indium in Lead Samples Determination of Indium in Lead and Zinc Oxide Determination of Germanium, Cadmium and Copper in Human Hair , Determination of lead migration on the surface of zinc containers Determination of calcium in sinters Determination of calcium in biological samples Determination of aluminum in gypsum Determination of aluminum in limestone Determination of aluminum in quartz sand Determination of lead in food packaging materials Determination of molybdenum and bismuth in foods Determination of calcium in cement raw materials by determination of nickel. Determination of calcium, barium, copper, zinc and cadmium in water samples. Determination of barium in carbon steel by determination of barium in peach. Determination of lead in peach leaves. Determination of cadmium in iron ores by lanthanum rare earth determination of lanthanum, lead, antimony and ytterbium in copper alloys Determination of lanthanum in tin and copper samples by determination of lanthanum in copper ore Tungsten alloy Determination of niobium in tungsten alloys Determination of niobium in tungsten alloys Determination of niobium in tungsten alloys Determination of calcium in tungsten compounds Determination of niobium in tungsten products Determination of niobium in selenium Determination of niobium in rare earth metals Determination of tin in tin Determination of indium in tin foil Determination of niobium in tin alloys Determination of bronze Determination of arsenic in washing waste water by tin-chromium Determination of hydrazine in glass by chromophore Determination of sodium nitrate in IO3-
Determination of lead in wheat flour and determination of zinc in zinc alloy Determination of calcium in serum Determination of calcium in tobacco leaf Determination of calcium in rock mineral Determination of cadmium in rock sample Determination of niobium in anode mud Determination of boron in magnesium oxide Determination of niobium in niobium oxide Determination of vanadium, manganese, lead and cadmium in tap water by determination of niobium in copper
The main use of UV spectrophotometer in agricultural detection