Micro-Volume UV/VIS Spectrophotometer BK-CW500 190–1100nm (CAT#: STEM-LT-1030-ZJF)

The BK-CW500 is a compact, high-performance micro-volume UV/VIS spectrophotometer designed for fast, accurate absorbance measurements across 190–1100nm. Featuring a grating double beam optical system, ultra-low sample volume capability (0.2μL), and exceptional reproducibility, it is ideal for laboratories performing nucleic acid quantification, protein analysis, and other biomolecular research.

Minimum Sample Capacity: 0.2μL
Ultramicro Optical Distance: 0.5mm
Detectable Concentration Range: 2.5–7500ng/μl (dsDNA)
Minimum Precise Detectable Concentration: 10ng/μl (dsDNA)
Maximum Precise Detectable Concentration: 5000ng/μl (dsDNA)
DNA Reproducibility: <±1.0% (dsDNA, @1000ng/μl)
Wavelength Range: 190–1100nm
Spectral Bandwidth: 4nm
Optical System: Grating double beam
Wavelength Accuracy: ±0.5nm
Wavelength Repeatability: 0.3nm
Maximum Scanning Speed: 4000nm/min
Photometric Accuracy: ±0.5%T or ±0.004A @1A
Photometric Range: 0–200%T, -0.3–0.3A, 0–9999Conc
Stray Light: 0.05%T @220nm, 340nm
Stability: ±0.001A/h @500nm
Baseline Flatness: ±0.002A
Light Source: Halogen & Deuterium lamp
Output: USB print and data output, PC connection
Power Supply: AC110/220V ±10%, 50/60Hz
Package Size: 480×600×360mm
Gross Weight: 11kg

Unique sample holder design allows testing of small DNA and protein samples.
Rapid detection with a simple drop sample, rotation, and immediate measurement.
No light loss during measurement ensures result accuracy.
Expandable functions for quantitative testing, wavelength scanning, kinetics, multi-wavelength analysis, and conventional colorimetric blood testing.

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