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DV-8200 Single Beam Visible Spectrophotometer

Q: 2. Does the DV-8200 support quantitative analysis? How does it work?

Yes. The instrument features a built-in Standard Curve function. After zeroing with a blank and measuring known standard concentrations, the DV-8200 constructs a calibration curve and directly displays the concentration of unknown samples.

Q: 3.Is a computer connection required to operate the DV-8200?

No. The DV-8200 can be operated standalone using the built-in keypad and large LCD display for wavelength selection, blanking, and direct reading. PC connectivity (optional) is only needed for advanced functions such as full wavelength scanning, kinetics, and enhanced data processing.

Q: 4. What type of cuvettes are compatible with the DV-8200?

The DV-8200 accepts standard 10 mm pathlength glass or quartz cuvettes (glass cuvettes are recommended for the visible range). It is also compatible with various rectangular cuvette holders for different sample volumes.

Q: 5. Can measurement data be printed or exported from the DV-8200?

Yes. The DV-8200 is equipped with RS-232 and USB ports, allowing direct connection to a serial printer for hard copy results, or data export to a PC via USB (requires optional PC software).

Q: 6. Who is the DV-8200 primarily intended for?

The DV-8200 is ideal for teaching laboratories in colleges and universities, environmental water testing stations, food & agricultural QC labs, pharmaceutical QC departments, and small-to-medium industrial quality control labs requiring routine visible-range colorimetric analysis.

Q: 7. What advanced features does the optional PC software provide?

The optional PC software, connected via USB, unlocks advanced features including full wavelength scanning, kinetics testing, DNA/protein concentration measurement (A260/A280), and enhanced standard curve fitting. These capabilities significantly expand the flexibility and efficiency of data analysis.

DV-8200 Single Beam Visible Spectrophotometer is a compact and reliable analytical instrument designed for quantitative and qualitative analysis in the visible wavelength range.

Featuring a single-beam optical system, the DV-8200 provides accurate absorbance and transmittance measurements with good repeatability. It supports standard curve calibration, wavelength scanning (with optional PC software), and basic photometric functions, making it suitable for a wide range of routine laboratory applications.

Technical Specifications

Optical System: Single beam.
Wavelength Range: 320 to 1100 nm.
Bandwidth: 4.0nm (2.0nm optional).
Display: 128×64 mm LCD.

DV-8200 Brochure

Description
Specifications
Accessories
Why Drawell?

Features of DV-8200 Spectrophotometer:

320–1100 nm Visible Range for colorimetric assays and solution concentration testing.
Single-beam Holographic Grating Optics with pre-aligned lamps for stable, low-noise readings.
Low Stray Light & High Stability ensure accurate and repeatable routine analysis.
USB & RS232 Ports support printer/PC connection and data output.
Large LCD Operation with automatic wavelength setting, blank adjustment, and curve display.
Multiple Test Modes: absorbance, transmittance, quantitative analysis; optional software supports spectrum scanning, kinetics, and bio-analysis.

Functions:

1. Photometric: T%, Abs
2. Quantitative: Standard Curve
3. System Utility
4. WL Scan (Spectrum Scan) (PC)
5. Time Scan (Kinetics) (PC)
6. DNA/Protein Test (PC)
7. Multi-WL Test (PC)

Working Principle of UV Visible Spectrophotometer

Different matter has different but special absorbance wavelength point. Also, when at the fixed wavelength point, the absorbance has some relation to the substance’ s (Always transparent Solution) concentration and its thickness. The relation can be concluded as the following Formula which is called Lambert-Beer Law.

T= I/Io
A=KCL= -log I/Io
A Absorbance
C Concentration of the Solution
K Absorbance Coefficient of the Solution
L The length of the Solution in the light path
I The intensity of the light focused on the A/D after it permeate the solution to be measured.
Io The intensity of the light focused on the A/D after it permeate the Solution.

Note: When test, the solvent is usually taken as the Reference Solution and its Transmittance is considered as 100%T. While the Transmittance of the sample to be tested is a relative value which is got comparing to that of the Reference.

Applications of DV-8200 Single Beam Visible Spectrophotometer

Education & Teaching Laboratories

Widely used in teaching laboratories for demonstrating Beer-Lambert Law, calibration curves, and basic qualitative and quantitative analysis of colored solutions.

Chemical & Industrial Process Control

Measuring absorbance-based color intensity and tracking reaction kinetics in dyes, coatings, inks, and electroplating solutions for routine industrial quality control.

Pharmaceutical & Biotech Quality Control

Used for quantitative analysis of APIs and finished products with visible absorbance, dissolution testing, and optional basic DNA/protein quantification and reaction kinetics monitoring via PC software.

Water & Environmental Analysis

Used for routine colorimetric determination of ammonia nitrogen, total phosphorus, Cr⁶⁺, nitrite, and volatile phenols in environmental water quality monitoring.

Food & Agricultural Quality Control

For colorimetric detection of nitrite, nitrate, phosphate, peroxide value, and pigments in food and agricultural products for quality control compliance.

DV-8200 Spectrophotometer Display

FAQ

No. The DV-8200 is a Visible Spectrophotometer with a wavelength range of 320–1100 nm. It is designed for colorimetric analysis of visible-light absorbing samples only and is not suitable for measurements requiring UV (<320 nm) detection.