Division 5.2.8.2 Concentration of mercaptoacetic acid present in the sample

If ‘t’ represents mercaptoacetic acid:

let:

k_t

its response factor,

S_t

its peak area.

If ‘c’ represents methyl octanoate:

let:

m_c

its mass (in mill grams) in the mixture,

S_c

its peak area,

M

the mass (in milligrams) of the initial test portion,

then the % (m/m) mercaptoacetic acid present in the sample is:

$$\frac{m_c}{M}\times \frac{k_t{\mathrm{\times S}}_t}{S_c}\mathrm{\times \; 100}$$