Analysis and Application of Cyclophosphamide by HPLC

Cyclophosphamide:
P / N Inertex C18, 5u 250 × 4.6mm
Chromatographic conditions:
Mobile phase: water: acetonitrile = 65:35
Detection wavelength: 195nm Flow rate: 1mL / min

1. The Standard of Stainless Steel material.

American: 201, 202, 410, 420, 430, 304, 316.

Japan: SUS201, SUS202, SUS410, SUS420, SUS430, SUS304, SUS316.

German: 13/0, 18/0, 18/8, 18/10.

18/0=430, 18/8=304, 18/10=316

 

2. What`s the difference from 18/0,18/8,18/10?

For 18/8, it means the material have 16%~18%, the number 18 means chrome 18%, and number 8 means nickle has 8%.

For 18/0, it also means chrome 16%~18%, but the nickle is zero, because the nickle is very expensive, 18/8 is much more expensive than 18/0.

For 18/10, it means chrome 16%~18%, but nickle is 10%.

Actually, the material 18/8 and 18/10 are the same material, because the tolerance of nickle is 8%~10%.

In china, we select 8% as our standard, but in Europe, people will select higher percentage as their standard. So we call it 18/8 in china and Europe people call it 18/10. 

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