The Formaldehyde & VOC UV-Visible Spectrophotometer is designed for professional laboratory analysis and quality control applications. It is suitable for the determination of formaldehyde, volatile organic compounds (VOC), and other chemical substances through UV-Visible spectrophotometric analysis.

Formaldehyde & VOC UV-Visible Spectrophotometer

Model:TD17657-FGV

I. Product Introduction

The instrument features a newly designed optical system and incorporates carefully selected, internationally sourced premium components to deliver outstanding optical performance, excellent measurement accuracy, and long-term stability. Its superior analytical performance fully meets the demanding requirements of professional laboratories and research institutions.

It is widely used in scientific research, quality control, and industrial applications across a broad range of fields, including organic chemistry, biochemistry, pharmaceutical analysis, food testing, medical and healthcare laboratories, environmental protection, and life sciences.

II. Instrument Features

1. 7-inch TFT True-Color LCD Display:

The instrument is equipped with a 7-inch TFT true-color LCD display and Omron high-quality tactile keys, providing a more comfortable user experience and reliable operation. The keys are designed for long service life and can withstand millions of operations without damage. The large screen directly displays various scanning curves and spectral graphs for convenient observation and analysis.

2. USB Data Storage and Multiple File Format Support:

The instrument supports USB flash drive storage. Data opening and editing do not require any professional auxiliary software. It supports Excel, TXT, and image formats, and allows data export in four formats: ***.csv, *.qua, .txt, and .bmp.

3. Data Output:

Equipped with an RS-232C serial port (for printer connection), USB drive interface (for data transfer), and USB HOST port (for connecting a USB flash drive). A standard 16GB storage memory is provided.

4. Advanced Processing System:

The instrument is the first in the industry to adopt an advanced ARM11 processor, enabling storage of up to 2,000 test data records or 500 calibration curves.

5. Optical System Design:

The suspension-type optical system design, combined with a reinforced and thickened aluminum base plate, effectively eliminates the influence of vibration and deformation on the optical system. The dual-layer structure completely separates the optical path components from the electronic circuits, significantly improving instrument resolution, stability, and measurement reliability.

6. Photoelectric Signal Detection System:

The instrument adopts an advanced photoelectric signal detection system, which effectively reduces the signal-to-noise ratio and improves overall stability and measurement accuracy.

7. Automatic Sampling Flow Path System (Optional):

An optional built-in fully automatic sampling flow path system is available, providing convenient operation and significantly improving user efficiency.

8. Rotating 8-Position Automatic Cuvette Holder (Optional):

The instrument can be equipped with an optional rotary 8-position automatic cuvette holder, ensuring that the light beam passes through the center of the cuvette for improved optical alignment and enhanced instrument performance.

III. Technical Specifications

Optical System: Proportional double-beam system with a 1200 lines/mm holographic grating

Spectral Bandwidth: 2.0 nm

Wavelength Range: 190–1100 nm

Wavelength Accuracy: ±0.3 nm

Wavelength Repeatability: ≤0.1 nm

Wavelength Resolution: 0.1 nm

Display: 7-inch 800 × 480 color graphic LCD display

Stray Light: ≤0.1%T at 420 nm; ≤0.05%T at 220 nm and 340 nm

Noise: ≤0.05%T at 0%T; ≤0.1%T at 100%T

Photometric Range: 0–200%T, -3–3A, 0–9999C (0–9999F)

Photometric Accuracy: ±0.3%T

Transmittance Repeatability: ≤0.1%T

Baseline Flatness: ±0.001 Abs

Light Source: Deuterium lamp and tungsten lamp

Data Output: RS-232C serial port (for printer connection), USB drive interface (for data transfer), and USB HOST port (for USB flash drive connection)

Processor: Cortex-M3 processor with a main frequency of 120 MHz

IV. Measurement Functions

The instrument provides multiple analytical modes to meet different laboratory testing requirements:

Photometric Measurement: Accurate absorbance and transmittance measurements

Quantitative Analysis: Concentration calculation based on standard curves

Wavelength Scanning: Automatic scanning and display of spectral curves

Kinetic Analysis: Monitoring of reaction processes and absorbance changes

Multi-Wavelength Analysis: Measurement and comparison of multiple wavelengths

Spectrum Storage and Processing: Convenient storage, review, and export of measurement data