2026-10-29

μGAS1001 Micro-Gas Reaction Evaluation System: The Core Instrument for Online Photocatalytic Gas Analysis | Perfectlight

1. Why Photocatalytic Experiments Cannot Do Without Online Gas Analysis

Photocatalytic water splitting and CO2 reduction target gaseous products (H2, O2, CO, CH4, and so on). Traditional offline sampling requires stopping illumination, collecting gas, and then sending it to a chromatograph—interrupting the photoreaction, introducing human error, and failing to capture the dynamic turning points of product generation. The value of the μGAS1001 Micro-Gas Reaction Evaluation System is precisely to close the loop of "reaction–sampling–detection": gas from the reactor is automatically introduced into the gas chromatograph and quantified by peak area on a set cycle, with no manual intervention required.

2. The Working Chain of the μGAS1001

The whole system consists of three parts: the photocatalytic reaction system provides a controlled illumination and atmosphere environment; the PLD-CGA1000 Composite Gas Analyzer or a sampling valve delivers the trace gas into the chromatography column; the gas chromatograph performs separation and quantification. The three are linked through tubing and a timed program, forming a cycle of "photoreaction → online injection → chromatographic quantification → data feedback."

Module	Function	Key Metrics
Photocatalytic reaction system	Provides illumination and gas-solid/liquid-solid reaction environment	Air tightness, illumination uniformity
Injection & carrier gas unit	Delivers trace gas into the chromatograph	Dead volume, response speed
Gas chromatograph	Separates and quantifies gas components	Detection limit, repeatability

3. Typical Application Scenarios

Photocatalytic water splitting for H2/O2: real-time plotting of H2 evolution rate curves to assess catalyst stability;
Photoelectrocatalytic CO2 reduction: online distinction of CO, CH4, and C2 products to avoid product accumulation contamination;
Photocatalytic activity evaluation: combined with multi-channel setups for high-throughput gas reading during catalyst screening.

4. Three Key Points When Building the System

Keep the tubing dead volume small; otherwise response slows and true turning points are smoothed out;
Match the carrier gas flow and chromatography program to ensure integrable peak shapes;
Calibrate the reaction system and the detection end under a common atmosphere. The PL-MW2000 High-Intensity Light Power Meter only calibrates light intensity at the sample position, while gas quantification requires standard gas to calibrate the chromatographic response factor.

Free consultation: Want to upgrade your photocatalytic platform into a closed-loop online analysis system? Tell Perfectlight application engineers your reaction system (gas-solid/liquid-solid) and target products, and we will configure the μGAS1001, gas chromatograph, and calibration scheme for you.

Tel: 400-1161-365 / 010-62128921　Perfectlight Official Website

Frequently Asked Questions (FAQ)

What is the relationship between the μGAS1001 and the gas chromatograph?

The μGAS1001 is the complete micro-gas reaction evaluation system, and the gas chromatograph is its detection unit. The system links the photocatalytic reactor, injection valve, and gas chromatograph to automate gas product quantification.

What are the advantages of online analysis over offline analysis?

Online analysis does not interrupt the photoreaction, programmatic injection eliminates human error, and it continuously records product changes over time, making it easier to capture kinetic turning points.

Do I have to buy the whole system to build a closed loop?

You need the reactor, injection, and chromatograph to work together; Perfectlight provides a complete μGAS1001 package and also supports integration with existing modules such as the PCX-50C and PLD-CGA1000.

This article does not constitute a performance commitment; specific technical parameters are subject to the actual product documentation and mutual confirmation.

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