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Purge & Trap-GC를 이용한 의약품 필름코팅 정제 중 잔류용제에 관한 연구
장준식,이명자,소유섭,문춘선,이주헌,박희라,김진숙,강경모,이선옥,방성연,유미자,유문균,금오성,이병욱 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-
의약품은 약물을 생체에 적풋하기 위하여 유효성분의 효과가 언제나 일정하게 확보되고 사응에 편리하도록 만들어지는 것이므로 유효썽분 이외에 약효에 영향을 주지 않는 성분이 첨가되는 경운가 많다. 이 때 사용되는 용매들은 제피의 광택 및 건쪼시간의 단축 등을 위하여 휘발점이 낮을 용매들이 주로 사용되어진다. 본 연구는 의약품 필름코팅정제 중 잔류용매 4종(chlorofonr benzen, trichloro ethylen, 1,4-dioxane)에 대한 변형된 pirge & trap-GC 장치를 이용한 동시분석방법을 개발하였으며, 각 표준품의 RSD 값은 chloroform 3.03%, benzen 3.17%, trichloroethylen 3.69% and 1,4-dioxane 3.41%였다. 또한 시중 유통중인 의약품 50종에 대하여 잔류웅매 양을 측정하였으며, 검출되는 잔류용매는 한 건도 없었다. This study nras carried out to develope the analytical method for the mixture of chlorefonn, benzen, trichloroethylen and 1,4-dioxane simultaneously and determine the remainingorgauic solvents in coating tablets by Purge & Trap-GC. The results were as follouFs ; 1. Chloroform, benzen, trio:tloroethylen and 1,4-dioxane separated by tenax #5 trap by HP-624GC column by terrlperature programming. The peaks were separated completely at retentiontime of 6.88min for chloroform, 8.21min for benzen, 10.38miu for trichloroethylen and 11.95minfor 1,4-dioxane. 2. Standard RSD were individually chloroform 3.03%, benzen 3.17%, trichloroethylen 3.69%and 1,4-diorane 3.41%. 3. 60 samples were not detrcted chloroform, benzen, trichloroethylen and 1,4-dioxane.
유자연(Ja Yeon Yoo),함준상(Jun-Sang Ham) 한국산학기술학회 2024 한국산학기술학회논문지 Vol.25 No.1
In this study, the Halloumi cheese containing Baromi 2 rice flour was manufactured to increase production yield. Halloumi cheese was produced by adding 1% or 2% rice flour to raw milk before pasteurization. Production yields, pH values, compositions, textures, and sensory preferences of Halloumi cheese with added rice flour and control Halloumi cheese were compared. Product yield and cheese moisture content increased as the amount of rice flour added increased. Halloumi cheese containing 2% rice flour had the highest moisture content and lowest hardness. Sensory preference was lowest for cheese containing 2% rice flour, but no significant difference was found between cheese containing 1% rice flour and control cheese. These results show that adding rice flour increases cheese yield but that further research is needed to improve sensory preference.
유자연 ( Ja-yeon Yoo ),박원서 ( Won-seo Park ),한기성 ( Gi-seong Han ),송민유 ( Min-yu Song ),정석근 ( Seok-geun Jeong ),함준상 ( Jun-sang Ham ) 한국유가공기술과학회 2017 Journal of Dairy Science and Biotechnology (JMSB) Vol.35 No.1
There has been an increasing interest in low-fat foods among consumers worldwide. However, very few dairy companies produce low-fat cheese in Korea. Therefore, low-fat cheese production must be studied to not only promote consumer health but also diversify the domestic natural cheese market. In this study, we attempted to soften the texture of low-fat Mozzarella cheese prepared from raw milk standardized to 2% by changing the temperature of the cooking process from 43℃ to 37℃ and 40℃. The protein and fat contents of low-fat Mozzarella cheese prepared at the selected temperatures was 5.10-7.01% higher and 5.24-6.38% lower, respectively, than that of control cheese. Moreover, the hardness of low-fat Mozzarella cheese decreased with increasing cooking temperature. Further research to improve the sensory characteristics of low-fat cheese is required.
Design of Learning Courses of Sorting Algorithms using LAMS
Yoo, Jae-Soo,Seong, Dong-Ook,Park, Yong-Hun,Lee, Seok-Jae,Yoo, Kwan-Hee,Cho, Ja-Yeon The Korea Contents Association 2008 International Journal of Contents Vol.4 No.1
The development of communication technology and the spread of computers and internet have affected to the field of education. In this paper, we design a learning process with LAMS to make the new education environment which is required in an information age. We made the learning environment with LAMS which develops the learner's algorithmic thinking faculty on some sorting algorithm, especially such as selection sort, bubble sort and insertion sort algorithm. In addition, we analyse the effectiveness of the learning environment. The designed contents were applied to elementary school students' learning and a questionnaire survey was conducted after a learning course. The research of the questionnaire shows that the learning system using LAMS motivates a learner for learning and provides a convenient learning environment.
Yoo, Young,Sohn, Jang Wook,Park, Dae Won,Kim, Jeong Yeon,Shin, Hye Kyung,Lee, Yoon,Choung, Ji Tae,Lee, Chang Kyu,Kim, Min Ja AMERICAN SOCIETY FOR MICROBIOLOGY 2007 CLINICAL AND VACCINE IMMUNOLOGY Vol.14 No.8
<B>ABSTRACT</B><P>The performance of the SD Bioline rapid antigen test kit for influenza virus detection was evaluated with 295 respiratory specimens during the influenza season. The overall sensitivity and specificity of the SD Bioline test were 61.9% and 96.8% for the influenza A virus antigen and 54.5% and 100% for the influenza B virus antigen, respectively. The results were consistent with peak influenza activities.</P>
일 지역 지방중소병원 간호사의 이직의도에 영향을 미치는 예측요인
유성자,최연희 한국간호과학회 간호행정학회 2009 간호행정학회지 Vol.15 No.1
Purpose: This study was to identify the factors influencing turnover intention of nurses in small and medium-sized hospitals. Method: The participants in this descriptive survey on causal relations were 192 nurses who were working at small and medium-sized hospitals in Daegu city. The data were collected by self-reporting questionnaires and analysed by the SPSS Win 14.0 program using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients and stepwise multiple regression. Result: The mean for job characteristics scores were 2.90, the job satisfaction scores were 3.00, the organizational commitment scores were 3.00, job stress scores were 2.42, the turnover intentions scores were 3.08. Turnover intention according to general features were shown as following; age, marital status, clinical career, work schedule type, frequency of night duty. The relationship between turnover intention and job stress had positive correlation. But the relationship between turnover and other factors that job satisfaction, organizational commitment had negative correlation. The causal factors of turnover intention were organizational commitment, job satisfaction, job stress, and job characteristics, frequency of night duty.R²=.39. The organizational commitment were the highest significant predictors of turnover intention. Conclusions: The findings of study suggest that broad intention program should be provided to prevent problems of turnover.
HBV : PE-031 ; Occult HBV infection in Korean blood donors
( Ja Kyung Kim ),( Hye Young Chang ),( Myung Hee Kim ),( Hyun Ok Kim ),( Mi Yeon Choi ),( Soo Youn Lee ),( Hyun Chung Chung ),( Yoo Sung Hwang ),( Kwan Sik Lee ) 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Background: Blood transfusion can transmit HBV-DNA and cause hepatitis B in blood recipient. Currently, serologic assay for the detection of HBsAg has been used in routine screening test of blood donors. Korea is an endemic area of HBV infection, prevalence of occult hepatitis B can be high. However, donors, who are suspected to have occult HBV infection, have not been evaluated further. We aimed to reveal clinical characteristics and to analyze HBV-DNA in liver tissue in these donors. Methods: Patients who donated blood in Hanmaeum Blood Center between May 16, 2011 and Dec 31, 2011 were enrolled in this study. Blood from these donors was screened HBsAg and HBV-DNA. HBV-DNA was detected by TMA (translationmediated amplification) method with PROCLEIX® TIGRIS® system (Novartis, USA). If a donor, who showed negative HBsAg but positive HBV-DNA, agreed to be evaluated, the donor underwent other serologic tests and liver biopsy. HBV-DNA in liver tissue was detected by direct sequencing. Results: Total 103,017 donors were enrolled. One hundred nineteen donors (0.11%) showed positive HBsAg. Among 102,898 donors with negative HBsAg (99.9%), HBV-DNA was positive in 16 donors (0.016%). Among negative HBsAg and positive HBV-DNA donors, 3 male donors agreed to evaluate further. All three donors had positive anti-HBs and negative HBeAg/anti-HBe, however, only one donor had positive anti-HBc. We confirmed HBV-DNA in liver tissue by PCR. Conclusion: Dual Screening tests with HBsAg and HBV-DNA for blood product can detect occult infection in blood donors. Clinical significance of donors with occult HBV infection needs to evaluated further.