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Merck

80457

三氟乙酸

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

别名:

TFA

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线性分子式:
CF3COOH
化学文摘社编号:
分子量:
114.02
Beilstein:
742035
EC號碼:
MDL號碼:
分類程式碼代碼:
41116105
NACRES:
NB.21

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蒸汽密度

3.9 (vs air)

品質等級

蒸汽壓力

97.5 mmHg ( 20 °C)

產品線

LiChropur

化驗

≥99.0% (GC)

形狀

liquid

技術

LC/MS: suitable

雜質

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

折射率

n20/D 1.3 (lit.)

bp

72.4 °C (lit.)

mp

−15.4 °C (lit.)

溶解度

water: soluble 10,000 g/L

密度

1.489 g/mL at 20 °C (lit.)

負離子痕跡

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

正離子痕跡

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 字串

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

適合性

passes test for LC-MS

InChI

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

InChI 密鑰

DTQVDTLACAAQTR-UHFFFAOYSA-N

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此商品
T65082995371.08178
grade

eluent additive for LC-MS

grade

-

grade

-

grade

-

assay

≥99.0% (GC)

assay

99%

assay

≥99%

assay

≥99.7% (acidimetric)

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

200

form

liquid

form

liquid

form

liquid

form

liquid

density

1.489 g/mL at 20 °C (lit.)

density

1.489 g/mL at 20 °C (lit.)

density

1.489 g/mL at 20 °C (lit.)

density

1.489 g/mL at 20 °C (lit.)

vapor density

3.9 (vs air)

vapor density

3.9 (vs air)

vapor density

3.9 (vs air)

vapor density

3.9 (vs air)

一般說明

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。

應用

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。[1]

包裝

透明的硼硅酸盐玻璃,高耐水解性(I 型)

法律資訊

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

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

儲存類別代碼

8B - Non-combustible corrosive hazardous materials

水污染物質分類(WGK)

WGK 2

閃點(°F)

>212.0 °F - Pensky-Martens closed cup

閃點(°C)

> 100 °C - Pensky-Martens closed cup


历史批次信息供参考:

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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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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