Agilent 7890A GC Training Materials

The Agilent 7890A system is a chemical analysis tool that delivers unprecedented levels of GC and GC/MS analysis: new chromatographic capabilities, unmatched repeatability and retention time, and Agilent's proven reliability. The 7890A chromatograph uses an innovative microplate flow control technology that allows the oven to cool faster and shorten the analysis cycle of the gas chromatograph. This article describes the basic operations of the Agilent 7890A for hardware operation, parameter setting, data acquisition, and data analysis.

The Toothbrush made of bamboo has the characteristics of toughness and wear resistance, softness and smoothness. The bamboo bristles cross section is covered with large and small oval pores, which can absorb and evaporate large amounts of water instantaneously.
The mixture of tea polyphenols in the compound brush contains lactic acid bacteria and other dental caries that can kill in the sew. It has the effect of inhibiting the activity of glucose polymerase, so that the glucose can not be polymerized on the bacteria table so that the bacteria can not be implanted on the teeth and the process of caries formation is interrupted.It is a biodegradable toothbrush that meets the requirements of green, environmental protection and low carbon.

Bamboo Toothbrush

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