UHPLC-MS乙腈(货号:14261-1L)

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