Shodex Calibration Standards for SEC
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All pictures shown are for illustration purpose only. Actual product may vary.
Shodex provide a comprehensive range of calibration standards including polystyrene and polymethylmethacrylate (PMMA) for organic solvent SEC and pullulan for aqueous SEC.
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
Specialist for polymer-based HPLC columns