𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Compositional and source characterization of base progressively extracted humic acids using pyrolytic gas chromatography mass spectrometry

✍ Scribed by Li Li; Wanglu Jia; Ping’an Peng; Guoying Sheng; Jiamo Fu; Weilin Huang

Book ID
116232390
Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
302 KB
Volume
21
Category
Article
ISSN
0883-2927

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Determination of Blood Folate Using Acid
Determination of Blood Folate Using Acid Extraction and Internally Standardized Gas Chromatography–Mass Spectrometry Detection
✍ Stephen R. Dueker; Yumei Lin; A.Daniel Jones; Roger Mercer; Elisabetta Fabbro; J 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 124 KB

Whole blood folate level is a superior indicator of folate nutritional status than serum/plasma level. Problems with and lack of confidence in results of current whole blood folate assays have limited its popularity for assessing folate nutritional status. Here, an acid extraction GCMS detection met

Characterization of humic acids in sedim
Characterization of humic acids in sediments from dam reservoirs by pyrolysis-gas chromatography/mass spectrometry using tetramethylammonium hydroxide: Influence of the structural features of humic acids on iron(II) binding capacity
✍ Masami Fukushima; Ken Furubayashi; Naotaka Fujisawa; Mio Takeuchi; Takeshi Komai 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 795 KB

The structural features of humic acids (HAs) isolated from sediments on the bottom of dam reservoirs that can affect their binding capacities for Fe(II) were investigated by pyrolysis-gas chromatography/mass spectroscopy using tetramethylammonium hydroxide (TMAH-py-GC/MS). The binding capacities for

Characterization of fluorinated ethylchl
Characterization of fluorinated ethylchloroformate derivatives of protein amino acids using positive and negative chemical ionization gas chromatography/mass spectrometry
✍ Mahnaz Vatankhah; Mehdi Moini 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 395 KB 👁 2 views

A solution of ethyl chloroformate + trifluoroethanol (or ethanol) + pyridine reacts rapidly with carboxylic and amino groups of amino acids to form n-ethoxycarbonyl amino acid trifluoroethyl (or ethyl) esters, which produce strong peaks representative of molecular ions in both positive and negative