Shodex Calibration Standards for SEC

Shodex provide a comprehensive range of calibration standards including polystyrene and polymethylmethacrylate (PMMA) for organic solvent SEC and pullulan for aqueous SEC.

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Part Number	Short Description	Weight	Material	Price
F8604075	Standard, M-75, 0.5g x 7 kinds	0.5	Polymethylmethacrylate	£2,233.31
F8400000	Standard, P-82, 0.2g x 8 kinds	0.2	Pullulan	£2,217.27
F8603075	Standard, SH-75, 0.5g x 7 kinds	0.5	Polystyrene	£2,233.31
F8601105	Standard, SL-105, 0.5g x 10 kinds	0.5	Polystyrene	£2,027.36
F8602105	Standard, SM-105, 0.5g x 10 kinds	0.5	Polystyrene	£2,027.36

Features

Polystyrene

For organic solvent SEC
Less branched polystyrene with anionic polymerization
Easily soluble in tetrahydrofuran (THF), chloroform, toluene, and o-dichlorobenzene (ODCB)

Polymethylmethacrylate (PMMA)

For organic solvent SEC
Narrow molecular weight distribution range
Easily soluble in hexafluoroisopropanol (HFIP) and dimethylformamide (DMF)

Pullulan

For aqueous SEC
Unbranched pullulan standard
High solubility in water eliminates the possibility of recrystallization

Specifications

The molecular weights (Mp, Mw/Mn) of each standard kit may vary depending on production lots.

Polystyrene SL-105

Standard No.	Mp	Mw/Mn
S-20	19,900	1.03
S-13	13,000	1.02
S-9.6	9,590	1.02
S-7.6	7,640	1.02
S-4.7	4,730	1.03
S-3.0	2,970	1.04
S-1.9	1,920	1.04
S-1.4	1,440	1.05
S-0.9	860	1.07
S-0.6	580	1.11

Polystyrene SM-105

Standard No.	Mp	Mw/Mn
S-2380	2,380,000	1.08
S-1390	1,390,000	1.05
S-730	730,000	1.05
S-270	270,000	1.02
S-139	139,000	1.03
S-45	45,100	1.02
S-20	19,500	1.02
S-6.3	6,320	1.03
S-3.0	2,970	1.04
S-1.2	1,150	1.08

Polystyrene SH-75

Standard No.	Mp	Mw/Mn
S-6870	6,870,000	1.09
S-5190	5,190,000	1.03
S-3750	3,750,000	1.05
S-2350	2,350,000	1.04
S-2000	2,000,000	1.03
S-991	991,000	1.05
S-508	508,000	1.05

Polymethylmethacrylate (PMMA) M-75

Standard No.	Mp	Mw/Mn
M-1020	1,020,000	1.04
M-505	505,000	1.02
M-224	224,000	1.02
M-67	66,700	1.03
M-18	17,800	1.04
M-6.1	6,140	1.11
M-2.9	2,880	1.08

Pullulan P-82

Standard No.	Mp	Mw/Mn
P-800	642,000	1.23
P-400	337,000	1.12
P-200	194,000	1.09
P-100	107,000	1.13
P-50	47,100	1.07
P-20	22,000	1.08
P-10	9,600	1.09
P-5	6,100	1.05

Literature