Division 5.2.8.1 Coefficient of proportionality for mercaptoacetic acid

This is calculated with respect to methyl octanoate on the basis of a standard mixture.

If ‘t’ represents mercaptoacetic acid:

let:

k_t

its response factor,

m'_t

its mass (in milligrams) in the mixture,

S'_t

its peak area.

If ‘c’ represents methyl octanoate:

let:

m'_c

its mass (in millegrams) in the mixture,

S'_c

its peak area,

then: $kt=\frac{{\mathrm{m\text{'}}}_t}{{\mathrm{m\text{'}}}_c}\times \frac{{\mathrm{S\text{'}}}_c}{{\mathrm{S\text{'}}}_t}$

This coefficient varies according to the apparatus used.