✦ LIBER ✦

In Situ Measurements of Atmospheric Nitrous Acid by Chemical Ionization Mass Spectrometry Using Chloride Ion Transfer Reactions

✍ Scribed by Hirokawa, Jun; Kato, Takehiro; Mafuné, Fumitaka

Book ID: 126075330
Publisher: American Chemical Society
Year: 2009
Tongue: English
Weight: 228 KB
Volume: 81
Category: Article
ISSN: 0003-2700
DOI: 10.1021/ac901117b

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Development of negative-ion proton-trans

Development of negative-ion proton-transfer chemical-ionization mass spectrometry (NI-PT-CIMS) for the measurement of gas-phase organic acids in the atmosphere

✍ Patrick Veres; James M. Roberts; Carsten Warneke; Daniel Welsh-Bon; Mark Zahnise 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 984 KB

Rapid Determination of Thiourea in Waste

Rapid Determination of Thiourea in Waste Water by Atmospheric Pressure Chemical Ionization Tandem Mass Spectrometry Using Selected-reaction Monitoring

✍ Andrea Raffaelli; Sergio Pucci; Raffaello Lazzaroni; Piero Salvadori 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 125 KB 👁 2 views

Thiourea, a toxic substance for nitrification bacteria, active at low concentration levels (toxicity limit: 76 ppb), cannot be analysed by conventional methods. Its high solubility in water and insolubility in non-polar organic solvents, such as diethyl ether or dichloromethane, make its extraction

Quantitation of Lysergic Acid Diethylami

Quantitation of Lysergic Acid Diethylamide in Urine Using Atmospheric Pressure Matrix-Assisted Laser Desorption/Ionization Ion Trap Mass Spectrometry

✍ Cui, Meng; McCooeye, Margaret A.; Fraser, Catharine; Mester, Zoltán 📂 Article 📅 2004 🏛 American Chemical Society 🌐 English ⚖ 117 KB

Quantitative measurement of N-acetyl-l-a

Quantitative measurement of N-acetyl-l-aspartic acid in urine by gas chromatography with negative-ion chemical ionization mass spectrometry

✍ Hans Jörg Leis; P.T. Ozand; A. Al Odaib; Helmut Gleispach 📂 Article 📅 1992 🏛 Elsevier Science ⚖ 267 KB

Use of liquid chromatography–atmospheric

Use of liquid chromatography–atmospheric pressure chemical ionization-ion trap mass spectrometry for identification of oleanolic acid and ursolic acid in Anoectochilus roxburghii (wall.) Lindl

✍ Liying Huang; Tianwen Chen; Zhao Ye; Guonan Chen 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 242 KB

## Abstract Oleanolic acid (OA) and ursolic acid (UA) are the two important bioactive compounds in __Anoectochilus roxburghii__ (wall) Lindl __(A. roxburghii)__, which has been used as a traditional Chinese medicine. So far, there has been no report to indicate that __A. roxburghii__ contains these

Differentiation of Regioisomeric Aromati

Differentiation of Regioisomeric Aromatic Ketocarboxylic Acids by Positive Mode Atmospheric Pressure Chemical Ionization Collision-Activated Dissociation Tandem Mass Spectrometry in a Linear Quadrupole Ion Trap Mass Spectrometer

✍ Lucas M. Amundson; Benjamin C. Owen; Vanessa A. Gallardo; Steven C. Habicht; Min 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 528 KB