Reagents for the determination of sulfur dioxide formaldehyde buffer (spectrophotometric method with pararosaniline hydrochloride)
Katalog №BWZ9032-2016Hajmi6 bottles/setNarxi
Bu mahsulot hozircha mavjud emas.
Texnik xususiyatlari
| Shakli | Suyuq |
|---|---|
| Yaroqlilik muddati | 6 oy |
| Matritsa | Suv |
| Qadoq | Brown glass bottle, white plastic bottle |
| Saqlash sharoiti | 2–8 ℃ haroratda, germetik va yorug‘likdan himoyalangan joyda saqlang. Ishlatishdan oldin (20±3) ℃ gacha keltirib, yaxshilab chayqating. Ochilgandan so‘ng darhol ishlating, ifloslanishdan saqlang. |
Qadoq hajmi
6 bottles/set, 40g/L
Tarkibi va attestatsiya qiymatlari
| Modda | Attestatsiya qiymati | Noaniqlik (k=2) | CAS |
|---|---|---|---|
| Formaldehyde absorption reserve solution | 40g/L | / | 1310-73-2 |
| Formaldehyde absorption reserve solution | / | / | / |
| Sulfamic acid A | 0.3g | / | 5329-14-6 |
| Aminosulfonic acid B | / | / | / |
| Pararosaniline hydrochloride | 0.2% | / | 569-61-9 |
| SO2 | 100μg/mL | 3% | 7446-09-5 |