Calibration Standards
When size exclusion chromatography (GPC or GFC) is performed, it is necessary to make a calibration curve.
It is recommended that Shodex STANDARD be used to obtain the calibration curve. The molecular weight range of Shodex STANDARD are very narrow and molecular weights are measured accurately.
Please refer to Calibration Standards for Aqueous SEC (GFC)
[Polystyrene (PS)]
| SL-105 SM-105 SH-75 |
· For organic SEC (GPC) · High linearity polystyrene with anionic polymerization · Soluble in tetrahydrofuran (THF), chloroform, toluene, and o-dichlorobenzene |
| Product code | Product name | Contents | MW range |
|---|---|---|---|
| STANDARD SL-105 |
0.5g x 10 kinds
|
500 to 22,000
|
|
| STANDARD SM-105 |
0.5g x 10 kinds
|
1,200 to 3,800,000
|
|
| STANDARD SH-75 |
0.5g x 7 kinds
|
590,000 to 7,500,000
|
| SL-105 | SM-105 | SH-75 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Std.No. | Mp | Mw/Mn | Std.No. | Mp | Mw/Mn | Std.No. | Mp | Mw/Mn | ||
| S-20 S-11 S-6.9 S-5.0 S-4.4 S-2.9 S-1.9 S-1.2 S-1.0 S-0.5 |
19,800 10,700 6,930 5,030 4,430 2,900 1,930 1,200 1,050 580 |
1.02 1.02 1.03 1.03 1.03 1.03 1.05 1.07 1.07 1.12 |
S-3730 S-2480 S-1230 S-579 S-197 S-55.1 S-31.4 S-12.8 S-3.95 S-1.20 |
3,730,000 2,480,000 1,230,000 579,000 197,000 55,100 31,400 12,800 3,950 1,200 |
1.04 1.05 1.05 1.02 1.02 1.03 1.02 1.02 1.03 1.07 |
S-7450 S-3790 S-3250 S-2220 S-1820 S-1060 S-591
|
7,450,000 3,790,000 3,250,000 2,220,000 1,820,000 1,060,000 591,000 |
1.07 1.05 1.04 1.03 1.04 1.03 1.03 |
||
[Structure formula of S series]
Note: Molecular weights (Mp, Mw/Mn) of each kit may vary depending on production lots.
[Polymethylmethacrylate (PMMA)]
| M-75 | · For organic SEC (GPC) · Narrow molecular weight range · Soluble in hexafluoroisopropanol (HFIP) and dimethylformamide (DMF) |
| Product code | Product name | Contents | MW range |
|---|---|---|---|
| STANDARD M-75 |
0.5g x 7 kinds
|
1,800 to 950,000
|
| M-75 | ||
|---|---|---|
| Std.No. | Mp | Mw/Mn |
| M-949 M-451 M-139 M-53 M-21 M-7.1 M-1.9 |
949,000 451,000 139,000 52,600 20,800 7,100 1,890 |
1.05 1.02 1.05 1.02 1.03 1.08 1.10 |
Note: Molecular weights (Mp, Mw/Mn) of each kit may vary depending on production lots.
When size exclusion chromatography (GPC or GFC) is performed, it is necessary to make a calibration curve.
It is recommended that Shodex STANDARD be used to obtain the calibration curve. The molecular weight range of Shodex STANDARD are very narrow and molecular weights are measured accurately.
Please refer to Calibration Standards for Organic SEC (GPC)
[Pullulan]
| P series | · For aqueous SEC (GFC) · Has no side chains · High solubility in water eliminates the possibility of recrystallization |
[Structure formula of P series]
(Kit type)
| Contents | Product name | Contents | MW range |
|---|---|---|---|
| STANDARD P-82 |
0.2g x 8 kinds
|
5,000 to 800,000(P-5 to P-800)
|
P-82 Kit Contents Available Individually
| Contents | Product name | Contents | Mp | Mw/Mn |
|---|---|---|---|---|
| STD P-800 STD P-400 STD P-200 STD P-100 STD P-50 STD P-20 STD P-10 STD P-5 |
0.5g
0.5g 0.5g 0.5g 0.5g 0.5g 0.5g 0.5g |
708,000
375,000 200,000 107,000 47,100 21,100 11,000 5,900 |
1.23
1.13 1.13 1.12 1.06 1.07 1.10 1.09 |
Note: Molecular weights (Mp, Mw/Mn) of each kit may vary depending on production lots.