Table 3.

Current mobile phases for molar mass determination: composition, dn/dc used, wavelength, DDA and molar mass of chitosan analyzed.

Mobile phase	pH	λ (nm)	dn/dc	Mw (kg/mol)	DDA (%)	Ref
0.2 M AcOH/0.1 M AcONa		436	0.175–0.208	194–2510	69–100	[120]
0.3 M AcOH/0.2 M AcONa		–	0.163	200–290	79–98	[121]
			0.190	60–260	40–100	[135]
0.2 M AcONH4	4.5	–	0.150	16–2610	40–85	[118]
0.2 M AcONH4	4.5	–	0.162a	22–720	40–100	[122]
0.2 M AcONH4	4.5	633	0.162	550		[122]
0.02 M AcONa + 0.1 M NaCl	4.5	633	0.203	31–57 (Mn)	75–93	[123], [126]
0.2 M AcOH/0.1 M AcONa	–	633	0.189	78–2770	83	[124]
0.25 M AcOH/0.25 M AcONa	4.7	633	0.158	38–2260	75–80	[125]
0.1 M AcOH/0.2 M NaCl	–	633	0.180–0.201	170–1200	58–85	[423], [424]
0.2 M AcONa	4.3	690	0.201–0.056(1-DDA)a	42–207	70–96	[127]
0.2 M AcOH/0.15 M AcONH4	4.5	633	0.154–0.195	360–400	30–95	[130]
0.2 M AcOH/0.15 M AcONa	4.5	633	0.154–0.198	130–270	30–99	[128], [129]
0.2 M AcOH/0.1 M AcONH4	4.5	633	0.203b	130–600	30–99	[131]
0.5 M AcOH/0.1 M NaNO3		690	0.203b	24–416	53–99.1	[132]
0.2 M AcONH4	4.5	633	0.142c	7–360	45–99.5	[133]
0.3 M ACOH/0.3 M AcONa + 1% ethylene glycol	4.5	670	0.163 d	9.7–491	52–99.8	[115]
0.15 M AcOH/0.1 AcONa	4.5	690	0.192	10–205 (Mn)	77–91.7	[134]

AcOH = acetic acid, AcONa = sodium acetate, AcONH₄ = ammonium acetate, NaNO₃ = sodium nitrate.

(M_n): Authors only provided number average molar mass.

^a0.02 M AcOH/0.02 M AcONa, 0.1 M NaCl, pH = 4.5, λ = 633 nm by Anthonsen et al. [136].

^bUsed Schatz et al. [129] values.

^cExpressed in chitosan acetate concentration otherwise change with DDA.

^dUsed Rinaudo et al. [121] values.