UV-Visible Absorption Spectrometer

This instrument is designed for routine applications such as water quality testing, food and beverage analysis, chemical analysis, and educational experiments. It is suitable for daily photometric measurements, quantitative analysis using standard curves, and spectral scanning of samples. It employs a single-beam C-T optical system and a photodiode (PD), with automatic switching between a deuterium lamp and a tungsten lamp, and a wavelength range of 190–1100 nm. Equipped with a 10.1-inch color capacitive touchscreen, it allows users to configure parameters, perform measurements, and view results directly on the main unit.

It is suitable for routine UV-visible spectrophotometric analysis in applications such as environmental monitoring, water quality testing, food and beverages, basic chemicals, healthcare, education, and third-party testing. It can be used for absorbance and transmittance measurements, quantitative analysis via standard curves, multi-wavelength measurements, spectral scanning, time-resolved scanning, and protein/DNA determination. It is suitable for testing parameters such as ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, total phosphorus, and total nitrogen in water, as well as formaldehyde, nitrogen oxides, and ammonia in air and exhaust gases, in accordance with relevant standard methods. The 10.1-inch touchscreen facilitates routine batch measurements, data export, report generation, and experimental data management. Specific test items, detection limits, and result interpretation should be determined in conjunction with the selected standard methods, sample pretreatment conditions, and laboratory method validation results.

• Single-beam UV-Vis measurement system: Features a C-T monochromator, a 1200-line/mm holographic grating, and a photodiode (PD), with a wavelength range of 190–1100 nm. Automatically switches between a deuterium lamp and a tungsten lamp, supporting photometric measurements and spectral scanning in the UV and visible regions.

• Wavelength and Photometric Performance: Maximum permissible wavelength error ±0.1 nm (at 656.1 nm), ±0.3 nm (across the entire wavelength range); Maximum allowable error in transmittance: ±0.3%T (0–100%T); transmittance repeatability: ≤0.1%T; stray light: ≤0.1%T; baseline flatness: ±0.002 A (200–1050 nm).

• 10.1-inch Color Touchscreen Operation: Equipped with a color capacitive touchscreen with a resolution of 1024×600, supporting both Chinese and English interfaces, allowing measurement parameter setup, measurement operations, and result viewing to be performed directly on the main unit.

• Multimode Analysis and Biological Sample Measurement: Supports photometric measurement, multi-wavelength measurement, spectral scanning, quantitative measurement, time-resolved scanning, and protein/DNA quantification. Equipped with automatic wavelength calibration, baseline correction, peak detection, and standard curve fitting functions, it can perform routine photometric analysis and record absorbance changes over time.

• Full Data Export and Report Generation: The standalone unit supports exporting all measurement data and test reports via a USB flash drive, with support for A4-format PDF reports.

• Spectral Bandwidth Configurable as Needed: The standard configuration features a 2 nm spectral bandwidth, with optional specifications of 1 nm, 1.8 nm, and 4 nm available; users can select the appropriate configuration based on the bandwidth required by the measurement method.

• Multi-Pathlength and Quadruple Holder Expansion: Comes standard with a 10 mm standard cuvette holder; optional adjustable-pathlength holders are available to accommodate pathlengths from 10 to 100 mm. Additionally, an optional manual slide-out quadruple holder is available to facilitate sequential switching between multiple cuvettes, accommodating different pathlengths and sample loading arrangements.

• No Calibration Required After Light Source Replacement and Maintenance Management: No optical path recalibration is required after replacing the light source. The system supports recording of light source usage time, making it easy to track usage and schedule maintenance. The main unit supports software updates via Wi-Fi.