Ultra-sensitive and selective p-xylene gas sensor at low operating temperature utilizing Zn doped CuO nanoplatelets: Insignificant vestiges of oxygen vacancies
Mnethu, Ongezwa, Nkosi, Steven S., Kortidis, Ioannis, Motaung, David E., Kroon, R.E., Swart, Hendrik C., Ntsasa, Napo G., Tshilongo, James, Moyo, Thomas
Published in Journal of colloid and interface science (15.09.2020)
Published in Journal of colloid and interface science (15.09.2020)
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Quantitation of hydrogen sulfide reference gas mixtures to provide traceability for indoor air quality monitoring
Leshabane, Nompumelelo, Tshilongo, James, Moja, Shadung J., Ntsasa, Napo G., Mphaphuli, Gumani, Jozela, Mudalo I.
Published in Accreditation and quality assurance (01.04.2021)
Published in Accreditation and quality assurance (01.04.2021)
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Influence of surfactant on sol-gel-prepared TiO2: characterization and photocatalytic dye degradation in water
Mkhohlakali, Andile, Jen, Tien-Chien, Ledwaba, Kabelo, Mapukata, Sivuyisiwe, Mabowa, Happy Mothepane, Letsoalo, Mokgehle R., Ntsasa, Napo, Tshilongo, James
Published in Frontiers in chemical engineering (29.07.2024)
Published in Frontiers in chemical engineering (29.07.2024)
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International comparison CCQM-K10.2018: BTEX in nitrogen at 5 nmol mol−1
Cecelski, Christina E, Rhoderick, George C, Possolo, Antonio M, Carney, Jennifer, Vokoun, Miroslav, Privoznikova, Jitka, Lee, Sangil, Kang, Ji Hwan, Kim, Yong Doo, Kim, Dal Ho, Macé, Tatiana, Sutour, Christophe, Pascale, Céline, Ntsasa, Napo, Tshilongo, James, Jozela, Mudalo, Leshabane, Nompumelelo, Lekoto, Goitsemang, Worton, David R, Brewer, Paul J, Farrow-Dunn, Fred, Moreno, Sergi, Wirtz, Klaus, Stummer, Volker, Konopelko, L A, Kolobova, A V, Kustikov, Y A, Klimov, A Y, Efremova, O V, Wijk, Janneke I T van, Veen, Adriaan M H van der
Published in Metrologia (01.01.2022)
Published in Metrologia (01.01.2022)
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International comparison CCQM-K3.2019 automotive exhaust gases
Veen, Adriaan M H van der, Zalewska, Ewelina T, Wijk, Janneke I T van, Kobayashi, Midori, Akima, Dai, Uehara, Shinji, Fioravante, Andreia L, Augusto, Cristiane R, Ribeiro, Claudia C, Silva, Viviane, Dias, Florbela, Botas, Alda, Costa, Carlos, Lee, Joengsoon, Lee, Jinbok, Lim, Jeongsik, Bae, Hyun-Kil, Kang, Namgoo, Cecelski, Christina E, Harris, Kimberly J, Jr, Walter R Miller, Carney, Jennifer, Tshilongo, James, Ntsasa, Napo G, Jozela, Mudalo I, Leshabane, Nompumelelo, Marebane, Prelly Mohweledi, Worton, David R, Webber, Eric B Mussell, Moreno, Sergi, Brewer, Paul J, Konopelko, Leonid A, Kolobova, Anna V, Pankratov, V V, Efremova, Olga V
Published in Metrologia (01.01.2023)
Published in Metrologia (01.01.2023)
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Journal Article
Final report, on-going key comparison BIPM.QM-K1, ozone at ambient level, comparison with NMISA, June 2017
Viallon, Joële, Idrees, Faraz, Moussay, Philippe, Wielgosz, Robert, Ntsasa, Napo G, Tshilongo, James, Mphaphuli, Gumani E, Norris, James E, Hodges, Joseph T
Published in Metrologia (01.01.2018)
Published in Metrologia (01.01.2018)
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Journal Article
International comparison CCQM-K111.1—propane in nitrogen
van der Veen, Adriaan M H, van der Hout, J Wouter, Ziel, Paul R, Jozela, Mudalo, Tshilongo, James, Ntsasa, Napo G, Botha, Angelique
Published in Metrologia (01.01.2017)
Published in Metrologia (01.01.2017)
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Journal Article
Pilot study CCQM-P172 – spectroscopic methods for HNO3 value assignment
Flores, Edgar, Viallon, Joële, Idrees, Faraz, Moussay, Philippe, Wielgosz, Robert, Jesús Ávila Salas, Manuel de, Delgado, Jorge Koelliker, Oh, Sang-Hyub, Lee, Sangil, Jung, Jinsang, Jozela, Mudalo, Ntsasa, Napo Godwill, Tshilongo, James, Mphamo, Tshepiso, Worton, David R, Brewer, Paul, Ward, Michael, Persijn, Stefan, Krom, Iris de, Veen, Adriaan van der
Published in Metrologia (01.01.2023)
Published in Metrologia (01.01.2023)
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Journal Article
International comparison CCQM-K74.2018: Nitrogen dioxide, 10 μmol mol-1
Flores, Edgar, Viallon, Joële, Idrees, Faraz, Moussay, Philippe, Wielgosz, Robert, Shinji, Uehara, Cieciora, Dariusz, Rolle, Francesca, Sega, Michela, Sang-Hyub, Oh, Macé, Tatiana, Sutour, Christophe, Pascale, Celine, Zhang, Tiqiang, Wang, Defa, Guo, Hushu, Han, Qian, Smeulders, Damian, Jozela, Mudalo, Ntsasa, Napo Godwill, Tshilongo, James, Mphamo, Tshepiso, Aswegen, Sivan Van, Worton, David, Brewer, Paul, Valkova, Miroslava, Tarhan, Tanıl, Efremova, Olga, Konopelko, Leonid, Krom, Iris de, Persijn, Stefan, Veen, Adriaan van der
Published in Metrologia (01.01.2021)
Published in Metrologia (01.01.2021)
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Journal Article
Towards the simultaneous detection of the low nmol/mol range of CO, CH4 and CO2 in nitrogen using GC-FID
van Rensburg, Mellisa Janse, Botha, Angelique, Ntsasa, Napo G., Tshilongo, James, Leshabane, Nompumelelo
Published in Accreditation and quality assurance (01.12.2009)
Published in Accreditation and quality assurance (01.12.2009)
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Journal Article
Conference Proceeding
FTIR and GC as complementary tools for analysis of corrosive gases
Tshilongo, James, Botha, Angelique, Janse van Rensburg, Mellisa, Leshabane, Nompumelelo, Ntsasa, Napo Godwill
Published in Accreditation and quality assurance (01.12.2009)
Published in Accreditation and quality assurance (01.12.2009)
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Journal Article
Conference Proceeding
Development of benzene, toluene, ethyl benzene, m-xylene, p-xylene and o-xylene (BTEX) gas reference standards for air pollution monitoring in South Africa
Ntsasa, Napo, Tshilongo, James, Leshabane, Nompumelelo, Jozela, Mudalo, Lekoto, Goitsemang, Forbes, Patricia
Published in Accreditation and quality assurance (01.12.2023)
Published in Accreditation and quality assurance (01.12.2023)
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Journal Article
Selective detection of propanol vapour at low operating temperature utilizing ZnO nanostructures
kortidis, Ioannis, Lushozi, Silindile, Leshabane, Nompumelelo, Nkosi, Steven S., Ndwandwe, O. Muzi, Tshilongo, James, Ntsasa, Napo, Motaung, David E.
Published in Ceramics international (01.09.2019)
Published in Ceramics international (01.09.2019)
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Journal Article
Seasonal Effluxes of Greenhouse Gases Under Different Tillage and N Fertilizer Management in a Dryland Maize Mono-crop
Vilakazi, Bonginkosi S., Zengeni, Rebecca, Mafongoya, Paramu, Ntsasa, Napo, Tshilongo, James
Published in Journal of soil science and plant nutrition (01.12.2021)
Published in Journal of soil science and plant nutrition (01.12.2021)
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Journal Article
Pilot study CCQM-P172 – spectroscopic methods for HNO 3 value assignment
Flores, Edgar, Viallon, Joële, Idrees, Faraz, Moussay, Philippe, Wielgosz, Robert, Jesús Ávila Salas, Manuel de, Delgado, Jorge Koelliker, Oh, Sang-Hyub, Lee, Sangil, Jung, Jinsang, Jozela, Mudalo, Ntsasa, Napo Godwill, Tshilongo, James, Mphamo, Tshepiso, Worton, David R, Brewer, Paul, Ward, Michael, Persijn, Stefan, Krom, Iris de, Veen, Adriaan van der
Published in Metrologia (01.01.2023)
Published in Metrologia (01.01.2023)
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Journal Article
Final report, on-going key comparison BIPM.QM-K1, ozone at ambient level, comparison with NMISA, June 2017
Viallon, Joële, Idrees, Faraz, Moussay, Philippe, Wielgosz, Robert, Ntsasa, Napo G, Tshilongo, James, Mphaphuli, Gumani E, Norris, James E, Hodges, Joseph T
Published in Metrologia (01.01.2018)
Published in Metrologia (01.01.2018)
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Journal Article
CCQM-K120 (Carbon dioxide at background and urban level)
Flores, Edgar, Viallon, Joële, Choteau, Tiphaine, Moussay, Philippe, Idrees, Faraz, Wielgosz, Robert I, Lee, Jeongsoon, Zalewska, Ewelina, Nieuwenkamp, Gerard, Veen, Adriaan van der, Konopelko, L A, Kustikov, Y A, Kolobova, A V, Chubchenko, Y K, Efremova, O V, Zhe, BI, Zhou, Zeyi, Rhoderick, George C, Hodge, Joseph T, Shimosaka, Takuya, Aoki, Nobuyuki, Hall, Brad, Brewer, Paul, Cieciora, Dariusz, Sega, Michela, Macé, Tatiana, Fükő, Judit, Nagyné Szilágyi, Zsófia, Büki, Tamás, Jozela, Mudalo I, Ntsasa, Napo G, Leshabane, Nompumelelo, Tshilongo, James, Johri, Prabha, Tarhan, Tanil
Published in Metrologia (01.01.2019)
Published in Metrologia (01.01.2019)
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Journal Article
International comparison CCQM-K111—propane in nitrogen
Veen, Adriaan M H van der, Hout, J Wouter van der, Ziel, Paul R, Oudwater, Rutger J, Fioravante, Andreia L, Augusto, Cristiane R, Brum, Mariana Coutinho, Uehara, Shinji, Akima, Dai, Bae, Hyun Kil, Kang, Namgoo, Woo, Jin-Chun, Liaskos, Christina E, Rhoderick, George C, Jozela, Mudalo, Tshilongo, James, Ntsasa, Napo G, Botha, Angelique, Brewer, Paul J, Brown, Andrew S, Bartlett, Sam, Downey, Michael L, Konopelko, L A, Kolobova, A V, Pankov, A A, Orshanskaya, A A, Efremova, O V
Published in Metrologia (01.01.2017)
Published in Metrologia (01.01.2017)
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Journal Article
Final report of the pilot study CCQM-P110-B1: A comparison of nitrogen dioxide (NO^sub 2^) in nitrogen standards at 10 [mu]mol/mol by Fourier transform infrared spectroscopy (FT-IR)
Flores, Edgar, Idrees, Faraz, Moussay, Philippe, Viallon, Joële, Wielgosz, Robert, Fernández, Teresa, Rojo, Andrés, Ramírez, Sergio, Aoki, Nobuyuki, Kato, Kenji, Jeongsoon, Lee, Moon, Dongmin, Kim, Jin-Seog, Harling, A, Milton, M, Smeulders, Damian, Guenther, Franklin R, Gameson, Lyn, Botha, Angelique, Tshilongo, James, Ntsasa, Napo Godwill, Valková, Miroslava, Konopelko, Leonid A, Kustikov, Yury A, Ballandovich, Vladimir S, Gromova, Elena V, Tuma, Dirk, Kohl, Anka, Schulz, Gert
Published in Metrologia (01.01.2012)
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Published in Metrologia (01.01.2012)
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