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Table 2 Analytical characteristics of solid phase spectrophotometric determination of salicylate derivatives (λ 410 nm, time of contact is 15 min)

From: Silica-titania xerogel for solid phase spectrophotometric determination of salicylate and its derivatives in biological liquids and pharmaceuticals

 

Analytical range (mM)

Linear approximation

R

Limit of detection (mM)

Sodium salicylate

0.1–5

A = 150·C

0.9968

0.02

Salicylamide

0.5–10

A = 86·C

0.9983

0.03

Methylsalicylate

0.05–4.7

A = 125·C

0.9976

0.01