特点：
-
通过更严格的UHPLC测试，极低的背景基线和杂质干扰（如邻苯二甲酸酯和聚乙二醇等）
-
通过UHPLC-MS TOF正离子和负离子模式测试，在模式切换时不会产生剧烈的基线漂移
-
包装于白色硅硼酸盐玻璃瓶中，有效避免碱金属加合物的生成
-
经0.1 μm膜过滤，不增加溶剂产生的背压
-
极高的批次重现性
grade |
LC-MS Ultra CHROMASOLV® |
vapor density |
1.41 (vs air) |
vapor pressure |
72.8 mmHg ( 20 °C) |
assay |
≥99.9% (GC) |
autoignition temp. |
973 °F |
quality |
tested for UHPLC-MS |
shelf life |
(limited shelf life, expiry date on the label) |
expl. lim. |
16 % |
total impurities |
≤0.0001% free alkali (as NH3) |
|
≤0.0001% non-volatile |
|
≤0.001% free acid (as CH3COOH) |
|
≤0.01% water |
|
≤0.3 ppb fluorescence (as quinine) at 254 nm |
|
≤0.3 ppb fluorescence (as quinine) at 365 nm |
transmittance |
191 nm, ≥30% |
|
195 nm, ≥85% |
|
200 nm, ≥97% |
|
215 nm, ≥98% |
|
≥230 nm, ≥99% |
refractive index |
n20/D 1.344(lit.) |
bp |
81-82 °C(lit.) |
mp |
−48 °C(lit.) |
density |
0.786 g/mL at 25 °C(lit.) |
cation traces |
Al: ≤0.02 mg/kg |
|
Ca: ≤0.05 mg/kg |
|
Fe: ≤0.02 mg/kg |
|
K: ≤0.05 mg/kg |
|
Mg: ≤0.02 mg/kg |
|
Na: ≤0.1 mg/kg |
abs. |
UHPLC-gradient/210 nm ≤2 mAU (peak) |
|
UHPLC-gradient/210 nm ≤8 mAU (drift) |
|
UHPLC-gradient/254 nm ≤0.6 mAU (peak) |
|
UHPLC-gradient/254 nm ≤3 mAU (drift) |
suitability |
passes test for suitability for UHPLC-MS |
grade LC-MS Ultra CHROMASOLV®
vapor density 1.41 (vs air)
vapor pressure 72.8 mmHg ( 20 °C)
assay ≥99.9% (GC)
autoignition temp. 973 °F
quality tested for UHPLC-MS
shelf life (limited shelf life, expiry date on the label)
expl. lim. 16 %
total impurities ≤0.0001% free alkali (as NH3)
≤0.0001% non-volatile
≤0.001% free acid (as CH3COOH)
≤0.01% water
≤0.3 ppb fluorescence (as quinine) at 254 nm
≤0.3 ppb fluorescence (as quinine) at 365 nm
transmittance 191 nm, ≥30%
195 nm, ≥85%
200 nm, ≥97%
215 nm, ≥98%
≥230 nm, ≥99%
refractive index n20/D 1.344(lit.)
bp 81-82 °C(lit.)
mp −48 °C(lit.)
density 0.786 g/mL at 25 °C(lit.)
cation traces Al: ≤0.02 mg/kg
Ca: ≤0.05 mg/kg
Fe: ≤0.02 mg/kg
K: ≤0.05 mg/kg
Mg: ≤0.02 mg/kg
Na: ≤0.1 mg/kg
abs. UHPLC-gradient/210 nm ≤2 mAU (peak)
UHPLC-gradient/210 nm ≤8 mAU (drift)
UHPLC-gradient/254 nm ≤0.6 mAU (peak)
UHPLC-gradient/254 nm ≤3 mAU (drift)
suitability passes test for suitability for UHPLC-MS
