Visible spectrophotometer 721G

Basic principle:
The spectrophotometer analysis method is based on the selective absorption of electromagnetic radiation by substances with different molecular structures.
The visible spectrophotometer is typically used in the electromagnetic radiation spectrum range of 330nm to 800nm.

Application:
The use of microprocessor control technology for qualitative and quantitative analysis of substances in the visible spectrum region is an essential multi-purpose analytical instrument in conventional laboratories, applied in departments such as medical and health, clinical testing, biochemistry, petrochemicals, environmental protection, quality control, and teaching laboratories in colleges and universities.

characteristic:
◆ Equipped with a backlit LCD display screen, the reading is clear and distinct.
Adopting advanced holographic blazed grating C-T monochromator, it has the advantages of high wavelength accuracy, good monochromaticity, and low stray light.
◆ Adopting a microcomputer measurement system, the T-A conversion accuracy is high, and it has automatic adjustment of 0% (T) and 100% (T), concentration direct reading, concentration factor setting, and can choose a serial data printer for data printing function.
High measurement reading accuracy, good reproducibility and stability.
◆ Optional printer.
UVWin7 software package (purchased separately).

Main technical indicators:
◆ Wavelength range: 340nm~1000nm (721G 721G-100) 325nm~1000nm (722G)
Maximum allowable wavelength error: ± 2nm
◆ Wavelength repeatability: ≤ 1nm
Maximum allowable error of transmittance: ± 0.5% (T)
◆ Transmission specific gravity repeatability: ≤ 0.2%（T）
Spectral bandwidth: 5nm
◆ Stray light: ≤ 0.5% (T) (measured as NaNO2 at 360nm)