The H2 evolution rate changes with catalyst activation, light-intensity drift, and system temperature. A single offline point sample only gives a "snapshot" at one moment and hardly reflects true kinetics. Online monitoring continuously records H2 amount over time, directly yielding a rate curve, and more easily reveals catalyst deactivation or system leakage.
The μGAS1000 Micro-Gas Reaction Evaluation System shares the same concept as the Labsolar-6A All-Glass Automatic Online Micro-Gas Analysis System: the reactor, sampling valve, and gas chromatograph are linked by a program. After illumination starts, the system pushes the reactor-chamber gas into the chromatograph on a cycle; the H2 peak area is converted to H2 amount, which is then divided by reaction time and catalyst dosage to obtain the rate.
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As long as you calibrate the chromatographic response factor with standard hydrogen and calibrate light intensity at the sample position with the PL-MW2000, online monitoring beats offline single-point sampling in both repeatability and accuracy.
It can serve single-point qualitative verification, but it hardly reflects true kinetics; for evaluations involving rate, selectivity, and stability, an online solution is recommended.
Divide cumulative H2 amount by reaction time and catalyst dosage to get the average rate; use the instantaneous peak-area change to obtain the instantaneous rate.
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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