UV-Vis Absorption Spectroscopy Test

Product Name UV-Vis Absorption Spectroscopy Test Product Overview English Introduction: UV-Vis absorption spectroscopy testing is one of the most basic and widely used optical characterization technologies in the fields of materials, chemical engineering, biomedicine and environmental detection. Based on the selective absorption characteristics of substance molecules for photons in the ultraviolet and visible light bands, it obtains core optical data such as characteristic absorption peaks, maximum absorption wavelength, transmittance and absorbance intensity by detecting the absorbance changes of samples within a specified wavelength range. It can be used to determine the band gap, material composition, concentration content, structural changes, doping modification effect and system stability of materials. Equipped with the Puxi TU-1901 dual-beam UV-Vis spectrophotometer, this testing service supports full-band scanning in the conventional wavelength range of 200–900nm, covering ultraviolet and visible light regions. It is suitable for various water-soluble and organic solvent-based liquid samples, featuring stable baseline, high scanning accuracy and good data repeatability. The test results can be directly applied to scientific paper publication, material mechanism analysis, product performance calibration, experimental data comparison and industrial quality inspection. Technical Parameter English Parameters: Instrument Model: Puxi TU-1901 dual-beam UV-Vis spectrophotometer, a high-precision scientific research-grade optical testing device suitable for spectral analysis in materials, chemical, environmental and medical fields Test Wavelength Range: 200nm–900nm, covering far ultraviolet, near ultraviolet and all visible light bands, meeting the spectral detection requirements of most organic and inorganic liquid samples Optical Structure: Adopts dual-beam optical path design, which can automatically deduct baseline, light source drift and environmental interference, with stable spectral baseline and excellent long-term testing stability Wavelength Accuracy: ±0.5nm, wavelength repeatability ≤0.2nm, with accurate spectral positioning to capture subtle absorption peak displacement and intensity changes Absorbance Accuracy: ±0.002Abs, absorbance repeatability ≤0.001Abs, capable of accurately identifying tiny light absorption differences and adapting to low-concentration sample detection Spectral Bandwidth: Fixed high-precision bandwidth of 2nm with excellent resolution, which can effectively distinguish adjacent characteristic absorption peaks with clear spectrum details Scanning Speed: Supports multi-gear scanning speed switching, which can be adjusted according to sample absorption intensity to balance detection efficiency and spectrum fineness Light Source System: Combined imported deuterium lamp and tungsten lamp light source with stable energy in UV-Vis full band, long service life and uniform light intensity Testing Modes: Supports full-band spectral scanning, fixed-point wavelength testing, kinetic scanning, quantitative concentration analysis and other modes Sample Adaptability: Compatible with various transparent or homogeneous diluted liquid samples such as aqueous solutions, alcohol solutions, organic dispersions and clear colloids Product Features Dual-beam precision detection with excellent data stability: Adopts high-end dual-beam optical path design to automatically compensate for light source fluctuation and environmental interference, effectively avoiding the baseline drift problem of single-beam equipment. The full-band spectrum is stable with minimal data errors, meeting high-precision scientific research data requirements. Full-band broad-spectrum scanning with wide adaptation range: The ultra-wide 200-900nm scanning range covers all core UV and visible light detection bands, suitable for various liquid phase samples such as organic dyes, nanomaterials, biological reagents, chemical auxiliaries and environmental water bodies. Ultra-high detection accuracy for subtle difference identification: Relying on an accurate wavelength and absorbance calibration system, it can capture tiny spectral shifts and absorption intensity differences caused by sample modification, concentration changes and doping regulation, adapting to refined mechanism research. Trace sample requirement with low detection cost: Only 3-4mL liquid sample is required for full-band scanning without complex extraction and pretreatment, with extremely low sample loss, suitable for the detection of rare reagents and high-value experimental samples. Comprehensive functional dimensions and high scientific research practicability: A single test outputs complete absorption spectrum, maximum absorption wavelength, characteristic peak position and absorbance values, which can be directly used for multi-dimensional scientific research analysis such as band gap calculation, concentration fitting, structural analysis and performance comparison. Standardized process with universal and authoritative data: The instrument complies with industry testing standards with standardized testing procedures, high spectrum clarity and good data repeatability. The results can be directly used for SCI papers, graduation theses, project conclusions and product quality inspection reports. High cost performance and short-cycle delivery: The full-band basic test is priced affordably with no hidden charges and efficient delivery within 3-5 working days, adapting to batch sample screening and conventional scientific research experiment needs. Application Fields Nano Material Field: UV-Vis absorption spectrum testing of quantum dots, nano-oxides, nano-carbon materials and metal nanoparticle dispersions, used for material band gap calculation, particle size analysis, dispersion stability evaluation and modification effect verification. Organic Optoelectronic and Dye Field: Spectral characterization of organic fluorescent dyes, conjugated polymers, optoelectronic functional molecules and pigment reagents, analyzing molecular structure, transition mechanism and optical response characteristics to guide the formula optimization of optoelectronic materials. Biomedical Field: Absorbance detection of protein solutions, nucleic acid reagents, biological probes and pharmaceutical solutions, used for biological concentration quantification, drug purity analysis, biocompatibility experiments and pharmaceutical stability research. Environmental Detection Field: Spectral analysis of water pollutants, water color developing reagents, heavy metal detection solutions and environmental organic matter, used for qualitative and quantitative detection of environmental pollutants and water quality safety assessment. Fine Chemical Industry Field: Transmittance and absorption spectrum testing of water-based coatings, coloring auxiliaries, cosmetic stock solutions and chemical additives to evaluate product purity, stability and formula uniformity. Catalytic Material Field: UV-Vis absorption testing of photocatalytic materials and photosensitive catalyst dispersions, correlating the light absorption capacity of materials with catalytic activity to support photocatalytic mechanism research and process optimization. Material Modification Research Field: Comparing UV-vis spectral changes before and after material modification, compounding and doping, analyzing structural evolution, energy level regulation and optical performance optimization mechanisms, and providing core data for mechanism demonstration in scientific research papers.