會議名稱： 2010 International Chemical Congress of Pacific Basin Societies 時間：December 15-20, 2010
地點：Honolulu, Hawaii, USA
主辦單位：American Chemical Society, Canadian Society for Chemistry, Chemical Society of Japan, New Zealand Institute of Chemistry, Royal Australian Chemical Institute, Korean Chemical Society, and Chinese Chemical Society.
1. 參加會議經過
The 2010 International Chemical Congress of Pacific Basin Societies is the sixth in the series of successful Pacifichem congresses that began in 1984. To be held in Honolulu on Dec.
15–20, Pacifichem 2010’s theme is “Chemistry, Technology, and Our Global Society.”
Pacifichem’s vision is to promote scientific exchange in the Pacific Basin for a healthy and sustainable future. The conference is sponsored jointly by the American Chemical Society (ACS), the Canadian Society for Chemistry (CSC), the Chemical Society of Japan (CSJ), the New
Zealand Institute of Chemistry (NZIC), the Royal Australian Chemical Institute (RACI), the Korean Chemical Society (KCS), and the Chinese Chemical Society (CCS).
The technical program is organized into topical areas. They are analytical chemistry;
inorganic chemistry; macromolecular chemistry; organic chemistry; physical chemistry;
theoretical and computational chemistry; agrochemistry; biological chemistry; environmental chemistry; materials and nanotechnology; alternative energy technology; chemistry outreach to the community; health and technology; and, security. The program features were described below.
Program Features:
More than 45 organizations officially participated.
A three-day exposition with displays by more than 50 organizations was held.
Three workshop sessions were given to discuss about the state-of-art of three currently hot topics
(Microfluidics & Nanofluidics (Dec 16); Lignin Biorefinery (Dec 17); Defense Threat Reduction Agency – Chemical/Biological Technologies (Dec 18))
Approximately 250 student finalist were selected from over 2500 poster submission to participate in the Pacifichem poster session
Congress opening ceremony was opened by a traditional Hawaiian chant followed by welcoming remarks by the chair of the conference and other dignitaries.
2. 與會心得
The conference was spectacularly held with more than 1,096 oral and poster technical presentations in 14 diverse research interest areas such as: analytical chemistry; inorganic chemistry; macromolecular chemistry; organic chemistry; physical chemistry; theoretical and computational chemistry; agrochemistry; biological chemistry; environmental chemistry;
materials and nanotechnology; alternative energy technology; chemistry outreach to the community; health and technology; and, security. Almost all of the topics presented in the conference were very interesting. However, since some sessions that I was interested in took place at the same time so it was impossible to participate in all those sessions.
I presented two works in this conference: Purification and identification of unknown hydrocarbons in soybean oil deodorizer distillate (in area Agrochemistry, session Application of Liquid and Gas Chromatography Mass Spectrometry to Agrochemical Challenges) and A study of tocopherols and free phytosterols separation via low temperature liquid-liquid extraction method (in area Agrochemistry, session Value-Added Food Products from Fruits and Vegetables). Other sessions (oral and poster) that I attended were those in Agrochemistry, Environmental Chemistry and Alternate Energy Technology areas. The presenters were graduate students, researchers, industrial representatives and professors that came from a wide array of research interests. They come not only from USA, Europe, and Japan, but also from Canada, China, Costa Rica, Fiji, India, Malaysia, Taiwan, Nation of Brunei, Singapore and Thailand. The topics covered in my section are quite interesting and helpful to my research. I had great time in discussion about some
challenges found in the research.
During the conference, the exposition were held for three days and provided me a great chance to enrich and update my knowledge on my research and other related topics. I am more than appreciated to have the opportunity to communicate with a number of exhibitors from academic, industry or government. The exhibitors (publishing companies and research-related industries) at the Expo displays have kept me up-to-date on the latest research publications;
diverse analytical tools; research chemicals, apparatus and instruments; as well as research-related software.
Overall, it was a great opportunity to join this kind of conference where I learned a lot of new research insights and acknowledged some new friends around the world. This experience has not only broadened my research knowledge, but has also improved my presentation and
communication skills. This kind of international conference is highly recommended for all graduate students and researchers to learn, exchange and expand knowledge, friendship and scientific cooperation.
發表之論文:
Purification and identification of unknown hydrocarbons in soybean oil deodorizer distillate
Session: Application of Liquid and Gas Chromatography Mass Spectrometry to Agrochemical Challenges
Authors: Novy S. Kasim (申娜薇),1 Setiyo Gunawan,2 Yi-Hsu Ju (朱義旭)1 Email address: [email protected], [email protected], [email protected]
Affiliations:
1 Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Keelung Road Sec. 4, Taipei 106-07, Taiwan.
2 Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Keputih Sukolilo, Surabaya 60111, Indonesia.
Abstract:
Soybean oil deodorizer distillate (SODD) is a byproduct of the refining process in obtaining refined soybean oil. In the isolation of squalene from SODD, ca. 30% of non polar lipid fraction (NPLF) is hydrocarbons (HCs), which can be divided into three main groups, viz. aliphatic, steroidal, and terpene HC. Aliphatic HCs of vegetable oil actually has potential in substituting the role of petroleum-based products and can be used as fingerprint for a given seed because they are indigenous to plant. The steroidal HC content of vegetable oil can be used as a means of identifying the oil and therefore, for detecting adulteration. The objective is to isolate and identify unknown aliphatic and steroidal HCs found in SODD.
The purification of each unknown can be achieved in three steps. Firstly, NPLF was obtained from SODD by a modified soxhlet extraction, then the NPLF was subjected to modified column chromatography to collect all hydrocarbons fraction and finally unknown aliphatic HCs were purified by conventional silica gel column chromatography (ca. 97% purity), while unknown steroidal HCs purified via vacuum distillation (ca. 90% purity) from the collected hydrocarbon fraction. Identification of individual aliphatic and steroidal HC was accomplished via IR, TLC, GC and GC-MS analyses.
In this study, GC chromatogram of aliphatic HC showed an unresolvable complex mixture of aliphatic HC containing only three major peaks and numbers of minor peaks. TLC method showed one spot of pure aliphatic compounds group. So, later IR analysis was further carried out to elucidate the unknown aliphatic HCs structure and it was found that no unsaturated bonds detected. Meanwhile, GC chromatogram of steroidal HC showed 5 major peaks. They were identified as derivatives of -sitosterol, campesterol, and stigmasterol. Special attention was needed in order to identify isomers which differ only in the position of double bonds.
Keywords: Soybean oil deodorizer distillate, aliphatic hydrocarbons, modified soxhlet extraction, steroidal hydrocarbons, silica gel column chromatography, vacuum distillation