Visual Basic-based development of the industrial GC chromatogram processing system was de-scribed;and making use of "trapezoidal method"to calculate chromatographic peak area and adopting "peak window"concept to eliminate the interfering peaks were proposed.This can improve the chromatograph’s re-peatability while the accuracy of calculating the peak area is promoted.%阐述基于 Visual Basic 开发工业气相色谱仪色谱图处理系统的实现过程，提出采用“梯形法”计算色谱峰峰面积，同时引入“峰窗”概念对干扰峰进行排除，在提高峰面积计算精度的同时也提高了色谱仪的重复性。
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