Enhancement of Congo Red-Neomycin Resonance Rayleigh Scattering by Dodecyl Trimethyl Ammonium Bromide and its Application

Table 1

Foreign substance allowances.

Foreign matter	Allowable concentration (μg·mL^−1)	Relative error (%)	Foreign matter	Allowable concentration (μg·mL^−1)	Relative error (%)
Glucose	100	−1.3	Starch	80	−2.1
β-cyclodextrin	90	−3	Ascorbic acid	50	1.4
L-aspartic acid	100	−2.2	Tryptophan	70	2.3
EDTA	100	2.7	L-serine	90	1.9
L-leucine	80	2.7	L-glutamate	50	−3.4
L-tryptophan	50	−1.5	NH4Cl	5	−0.7
KCl	8	1.3	CaCl2	10	0.9
ZnSO4	10	1.7	CuCl2	8	1.4
MnCl2	8	3.5	AlCl3	10	2.5
FeCl3	8	2.4	CdCl2	5	−1.4