Author(s)

Zhongyi Mao ¹

Affiliation(s)

¹ School of Chemical Engineering, Northwest Minzu University, Lanzhou, Gansu, 730000, China

Corresponding Author

Zhongyi Mao

ABSTRACT

Agilent GC7890A gas chromatograph is an important analytical instrument commonly used in the laboratory, with high precision, high sensitivity and good stability. However, with the growth of use time, the instrument may encounter some common faults, such as the FID detector baseline abnormality, the occurrence of irregular ghost peak, and the large baseline noise. These faults will not only affect the normal use of the instrument, but also may cause adverse effects on the experimental results. Therefore, the analysis of the common faults of Agilent GC7890A gas chromatograph and the corresponding treatment methods are of great significance to ensure the accuracy of the experimental results and the normal operation of the instrument. This paper first provides an overview of the basic information, functional characteristics of the Agilent GC7890A GC, and the range of applications in the laboratory. Then, the installation and maintenance precautions of the instrument are introduced in detail, including the requirements of the installation environment, installation steps, daily maintenance and regular maintenance. Finally, this paper analyzes the common faults of FID detector, including baseline error, no response, random ghost peak and high baseline noise, and proposes the corresponding treatment methods and preventive measures.

KEYWORDS

Agilent GC7890A; gas chromatograph; FID detector; common fault and handling method

CITE THIS PAPER

Zhongyi Mao, Analysis of common faults of Agilent GC7890A gas chromatograph. Journal of Electrotechnology, Electrical Engineering and Management (2024) Vol. 7: 58-63. DOI: http://dx.doi.org/10.23977/jeeem.2024.070108.

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