Industrial methyl chloride (3)

4.

4.

4.

4.

4.

Table 2 Recommended values ​​of chromatographic analysis conditions

4.

4.

Connect the vacuum-dried sampler to the sample container with a dry sampler tube

4.

Start the instrument and make necessary adjustments to achieve the analysis conditions recommended in Table 2, or the user can select appropriate chromatographic conditions to achieve the appropriate resolution

Figure 4 Typical gas chromatogram of recovered methyl chloride

Figure 5 Typical gas chromatogram of synthetic methyl chloride

Table 3 Relative retention time of methyl chloride chromatography by recovery method

Table 4 The relative retention time of synthetic methyl chloride chromatography

4.

The methyl chloride content X expressed in mass percentage is calculated according to formula (1):

In the formula: A — the peak area of methyl chloride , cm ² ;

A _i —the peak area of ​​component i, cm ²
.

4.
2.
7 Tolerance

Take the arithmetic average of the two parallel determination results as the determination result
.
The difference between the two parallel determination results is not more than 0.
2%
.