scholarly journals DISTRIBUSI MOLEKULER SPESIES HETEROATOM DALAM MINYAK BATUBARA INDONESIA

2010 ◽  
Vol 6 (2) ◽  
Author(s):  
Sri Djangkung Sumbogo Murti ◽  
Yusnitati Yusnitati
Keyword(s):  
Gas Chromatography ◽  
Liquid Product ◽  
Atomic Emission ◽  
Sulfur Compounds ◽  
Emission Detector ◽  
Boiling Range ◽  
Heteroatomic Compounds ◽  
Atomic Emission Detector

Heteroatom-containing species in the coal liquid oils (CLO) were identified andquantified by the aid of gas chromatography with atomic emission detector (GCAED).Four different CLOs from different rank coals, processes and cut pointswere investigated in the present study. Thiophene and its derivatives were foundto be the major sulfur compounds, pyridines and anilines, and phenols were themajor nitrogen and oxygen compounds, respectively in the oils of boiling range<300oC). An oil of boiling range (300–420oC) carried moredimethyldibenzothiophenes and benzoquinolines. The correlation between feedcoal and liquid product was discussed in terms of the compositions ofheteroatomic compounds.Kata kunci: coal liquid oil, heteroatomic compounds, GC-AED

scholarly journals MOLECULAR COMPOSITION OF COAL LIQUID OIL CHARACTERIZED BY GAS CHROMATOGRAPHY WITH ATOMIC EMMISION DETECTOR

2010 ◽  
Vol 6 (1) ◽  
Author(s):  
Yusnitati Yusnitati ◽  
Sri Djangkung Sumbogo Murti
Keyword(s):  
Gas Chromatography ◽  
Liquid Product ◽  
Atomic Emission ◽  
Sulfur Compounds ◽  
Molecular Composition ◽  
Emission Detector ◽  
Boiling Range ◽  
Heteroatomic Compounds ◽  
Atomic Emission Detector

Heteroatom-containing species in the coal liquid oils (CLO) were identified andquantified by the aid of gas chromatography with atomic emission detector (GCAED).Four different CLOs from different rank coals, processes and cut pointswere investigated in the present study. Thiophene and its derivatives werefound to be the major sulfur compounds, pyridines and anilines, and phenolswere the major nitrogen and oxygen compounds, respectively in the oils ofboiling range < 300 ℃. An oil of boiling range (300 – 420℃) carried moredimethyldibenzothiophenes and benzoquinolines. The correlation between feedcoal and liquid product was discussed in terms of the compositions ofheteroatomic compounds.Kata kunci: coal liquid oil, heteroatomic compounds, GC-AED

Gas chromatography of organic mixtures using an atomic emission detector

2010 ◽  
Vol 65 (8) ◽  
pp. 770-784 ◽  
Author(s):  
E. S. Chernetsova ◽  
A. I. Revel’skii ◽  
I. A. Revel’skii ◽  
Yu. A. Zolotov
Keyword(s):  
Gas Chromatography ◽  
Atomic Emission ◽  
Organic Mixtures ◽  
Emission Detector ◽  
Atomic Emission Detector

Gas chromatography with surface ionization detection of nitro pesticides

2009 ◽  
Vol 63 (5) ◽  
Author(s):  
Seiji Takahashi ◽  
Futoshi Nagamura ◽  
Miki Sasaki ◽  
Toshihiro Fujii
Keyword(s):  
Gas Chromatography ◽  
Detection Limit ◽  
Capillary Gas Chromatography ◽  
Atomic Emission ◽  
Linear Range ◽  
Detectable Level ◽  
Surface Ionization ◽  
Emission Detector ◽  
Higher Sensitivity ◽  
Atomic Emission Detector

AbstractA surface ionization gas chromatographic detector, based upon positive surface ionization, was used in capillary gas chromatography to sensitively and selectively detect nitro pesticides: pendimethalin, trifluralin, flumetralin. Higher sensitivity (better detection limit), substance specificity, and advantageous applicability are reported. Sensitivity to pendimethalin, trifluralin, and flumetralin was 1.4 C g−1, 1.1 C g−1, and 1.0 C g−1, respectively, with the linear range of operation greater than 1 × 105 for these compounds. The minimum detectable level was in the range of 10−13 g s−1. Compared with an atomic emission detector, SID provided a 110 times better detection limit for trifluralin.

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