scholarly journals Determination of N-methylmorpholine in air samples from a polyurethane foam factory. Comparison between two methods using gas chromatography and isotachophoresis for analysis.

1986 ◽  
Vol 12 (1) ◽  
pp. 66-69 ◽  
Author(s):  
L Hansen ◽  
B Akesson ◽  
Jan Sollenberg ◽  
T Lundh
Keyword(s):  
Gas Chromatography ◽  
Polyurethane Foam ◽  
Air Samples

Determination of dibutyltin compounds in soft polyurethane foam by gas chromatography with flame photometric detection

The Analyst ◽  
1998 ◽  
Vol 123 (5) ◽  
pp. 1091-1094
Author(s):  
Makoto Nagase ◽  
Mineki Toba ◽  
Hiroyuki Kondo ◽  
Kiyoshi Hasebe
Keyword(s):  
Gas Chromatography ◽  
Polyurethane Foam ◽  
Photometric Detection ◽  
Flame Photometric Detection

Polyurethane foam sampling for the determination of acetochlor in the air of workplace-gas chromatography

2022 ◽  
Author(s):  
Mengyao Chen ◽  
Jian Wu ◽  
Hao Chen ◽  
Zongli Huo ◽  
Xuexue Ding ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Polyurethane Foam

scholarly journals Validasi Metode Penentuan Benzena, Toluena dan Xilena pada Sampel Udara dan Tanah Menggunakan Kromatografi Gas

2019 ◽  
Vol 15 (1) ◽  
pp. 177
Author(s):  
Aman Sentosa Panggabean ◽  
Tika Widyastuti ◽  
Noor Hindryawati
Keyword(s):  
Gas Chromatography ◽  
Retention Time ◽  
Limit Of Detection ◽  
Soil Samples ◽  
Analytical Performance ◽  
Air Samples ◽  
Limit Of Quantitation ◽  
Benzene Toluene ◽  
Precision And Accuracy

<p>Penelitian tentang validasi metode penentuan kadar benzena, toluena dan xilena pada sampel udara dan tanah dengan menggunakan kromatografi gas telah dilakukan. Untuk mendapatkan hasil pengukuran yang valid, beberapa parameter penting yang berpengaruh dalam validasi metode telah ditentukan. Beberapa parameter penting yang dilakukan adalah penentuan besaran dasar kromatografi yang meliputi: waktu retensi, kapasitas (k’), faktor selektivitas (α) dan kinerja analitik yang meliputi: penentuan linearitas (r), limit deteksi (LOD), limit kuantitasi (LOQ), presisi dan akurasi. Hasil penelitian penentuan kinerja analitik sangat baik ditunjukkan oleh nilai presisi sebagai % KV &lt; 2/3 nilai KV Horwitz, LOD untuk masing-masing senyawa benzena, toluena dan xilena adalah 0,02 mg/L; 0,59 mg/L dan 0,08 mg/L serta LOQ untuk masing-masing senyawa benzena, toluena dan xilena adalah 0,07 mg/L; 1,99 mg/L dan 0,27 mg/L. Akurasi  metode ini sangat baik ditunjukkan dengan nilai presentase perolehan kembali masing-masing senyawa benzena, toluena dan xilena untuk sampel tanah sebesar 102,61 ± 4,61%; 101,65 ± 7,41%; 102,15 ± 4,15%, dan untuk sampel udara masing-masing senyawa sebesar 101,69 ± 5,77%; 102,08 ± 5,43% dan 98,55 ± 5,11%. Berdasarkan hasil penelitian ini, metode kromatografi gas dapat digunakan dalam penentuan benzena, toluena dan xilena pada sampel udara dan tanah dengan memberikan hasil yang valid.</p><p><strong>Validation Method </strong><strong>o</strong><strong>n The Determination </strong><strong>o</strong><strong>f Benzene, Toluene </strong><strong>a</strong><strong>nd Xylene </strong><strong>i</strong><strong>n Air </strong><strong>a</strong><strong>nd Soil Samples Using Gas Chromatography. </strong>The present study investigated the method for the determination of the content of benzene, toluene, and xylene in air and soil samples using gas chromatography. To obtain a valid measurement result, several important parameters that influence the method validation have been determined. The several important parameters carried out are the determination of the basic chromatographic such as retention time, capacity factor (k'), selectivity (α) and analytical performance measurement includes: the determination of linearity (r), limit of detection (LOD), limit of quantitation (LOQ), precision and accuracy. The result of analytical performance of the research are well verified, in which the value of precision was % CV &lt; 2/3 CV Horwitz value, LOD for benzene, toluene, and xylene compound were 0.02 mg/L, 0.59 mg/L, 0.08 mg/L, respectively, and LOQ for benzene, toluene and xylene compounds was 0.07 mg/L, 1.99 mg/L and 0.27 mg/L respectively. This method achieved high accuration, indicated by a percentage of recovery value of benzene, toluene, and xylene for soil samples of 102.61 ± 4.61%; 101.65 ± 7.41%; 102.15 ± 4.15%, and for air samples was 101.69 ± 5.77%, 102.08 ± 5.43%, and 98.55 ± 5.11% respectively. Based on the results of this research, the method presented in this study can be applied for the determination of benzene, toluene, and xylene using gas chromatography in air and soil samples with valid results.</p>

Determination of methyl bromide in air samples by headspace gas chromatography

1988 ◽  
Vol 60 (5) ◽  
pp. 509-512 ◽  
Author(s):  
James E. Woodrow ◽  
Michael M. McChesney ◽  
James N. Seiber
Keyword(s):  
Gas Chromatography ◽  
Methyl Bromide ◽  
Headspace Gas Chromatography ◽  
Air Samples ◽  
Headspace Gas
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