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Merck
CN

80457

Supelco

三氟乙酸

eluent additive for LC-MS, LiChropur, ≥99.0% (GC)

别名:

TFA

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关于此项目

线性分子式:
CF3COOH
化学文摘社编号:
分子量:
114.02
Beilstein:
742035
EC 号:
MDL编号:
UNSPSC代码:
41116105
NACRES:
NB.21
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蒸汽密度

3.9 (vs air)

质量水平

蒸汽压

97.5 mmHg ( 20 °C)

产品线

LiChropur

方案

≥99.0% (GC)

表单

liquid

技术

LC/MS: suitable

杂质

≤0.05% water
≤50 mg/kg total sulfur (as SO4)

折射率

n20/D 1.3 (lit.)

沸点

72.4 °C (lit.)

mp

−15.4 °C (lit.)

溶解性

water: soluble 10,000 g/L

密度

1.489 g/mL at 20 °C (lit.)

痕量阴离子

chloride (Cl-): ≤50 mg/kg
sulfite (SO32-): ≤10 mg/kg

痕量阳离子

Ag: ≤0.05 mg/kg
Al: ≤0.1 mg/kg
Ba: ≤0.1 mg/kg
Bi: ≤0.5 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.1 mg/kg
Co: ≤0.05 mg/kg
Cr: ≤0.1 mg/kg
Cu: ≤0.05 mg/kg
Fe: ≤1.0 mg/kg
K: ≤1.0 mg/kg
Li: ≤0.1 mg/kg
Mg: ≤1.0 mg/kg
Mn: ≤0.1 mg/kg
Mo: ≤0.05 mg/kg
NH4+: ≤10 mg/kg
Na: ≤1.0 mg/kg
Ni: ≤0.1 mg/kg
Pb: ≤0.05 mg/kg
Sr: ≤0.05 mg/kg
Tl: ≤0.1 mg/kg
Zn: ≤0.1 mg/kg

紫外吸收

λ: 260 nm Amax: ≤0.9
λ: 270 nm Amax: ≤0.1
λ: 280 nm Amax: ≤0.08
λ: 290 nm Amax: ≤0.07
λ: 300 nm Amax: ≤0.06
λ: 320 nm Amax: ≤0.05

SMILES字符串

OC(C(F)(F)F)=O

适用性

passes test for LC-MS

InChI

1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)

InChI key

DTQVDTLACAAQTR-UHFFFAOYSA-N

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一般描述

三氟乙酸通常用作液相色谱-质谱法(LC-MS)中的流动相添加剂。
特点:
  • 全面的质量控制测试确保最高规格。        
  • 经过优化以提高电离和分辨率。        
  • 无机和有机杂质含量极低。       
  • 为精确、快速的LC-MS专门制造。

应用

三氟乙酸可用作流动相添加剂,用于通过亲水相互作用液相色谱-电喷雾电离耦合串联质谱法(HILIC-ESI / MS / MS)和反相液相色谱-串联质谱法(RP-LC-MS / MS)分析生物样品中的碱性化合物。

包装

透明的硼硅酸盐玻璃,高耐水解性(I 型)

法律信息

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

象形图

CorrosionExclamation mark

警示用语:

Danger

危险声明

危险分类

Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A

储存分类代码

8B - Non-combustible corrosive hazardous materials

WGK

WGK 2

闪点(°F)

>212.0 °F - Pensky-Martens closed cup

闪点(°C)

> 100 °C - Pensky-Martens closed cup

法规信息

危险化学品
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分析证书(COA)

Lot/Batch Number

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Simple means to alleviate sensitivity loss by trifluoroacetic acid (TFA) mobile phases in the hydrophilic interaction chromatography?electrospray tandem mass spectrometric (HILIC?ESI/MS/MS) bioanalysis of basic compounds
Shou ZW and Naidong W
Journal of Chromatography. B, Biomedical Sciences and Applications, 825(2), 186-192 (2005)

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