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Artykuły w czasopismach na temat "Dibutyl phthalate (DBP)"

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ศรีโยทัย, วรประภา, та ดวงนภา สุวรรณ. "การศึกษาวิธีหาปริมาณทาเลตในของเล่นพลาสติกชนิดพีวีซี โดยเทคนิคแก๊สโครมาโทกราฟี แมสสเปกโทรเมตรี". วารสารวิทยาศาสตร์ประยุกต์ กรมวิทยาศาสตร์บริการ 1, № 1 (2022): 23–29. http://dx.doi.org/10.60136/bas.v1.2012.172.

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การศึกษาวิธีทดสอบหาปริมาณทาเลต (Phthalates) 4 ชนิด ได้แก่ Dibutyl phthalate (DBP), Benzyl butyl phthalate (BBP), Di (2-ethylhexyl) phthalate (DEHP) และ Di-n-octyl phthalate (DnOP) ในของเล่นที่เป็นพลาสติกชนิดพีวีซี (Polyvinyl chloride, PVC) โดยเทคนิคแก๊สโครมาโทกราฟีแมสสเปกโทรเมตรี ดำเนินการตามวิธีที่ปรับจากวิธีมาตรฐาน CPSC-CH-C-1001-09.03 เพื่อนำมาใช้ในการทดสอบตัวอย่างของเล่นที่เป็นพลาสติกชนิดพีวีซีต่อไปจากผลการศึกษาพบว่าวิธีทดสอบ มีช่วงความเป็นเส้นตรงของ DBP, BBP, DEHP และ DnOP อยู่ในช่วง 0.02-10.0 ไมโครกรัมต่อมิลลิลิตร และค่าขีดจำกัดการตรวจวัดของ DBP, BBP, DEHP และ DnOP มีค่าเท่ากับ 0.01 ร้อยละโดยน้ำหนัก ส่วนค่าขีดจำกัดการตรวจหาปริมาณของ DBP, BBP, DEHP และ DnOP มีค่าเท่ากับ 0.02 ร้อยละโดยน้ำหนัก โดยการเติมสารละลายมาตรฐานทาเลต ได้ค่าการกลับคืนได้ค่าการกลับคืนของ DBP, BBP, DEHP และ DnOP โดยอยู่ในช่วงร้อยละ 83-91, 86-117, 74-87 และ 94-126 ตามลำดับ และมีค่าความเบี่ยงเบนมาตรฐานสัมพัทธ์อยู่ระหว่างร้อยละ 1.1-7.4 ซึ่งอยู่ในเกณฑ์การยอมรับ วิธีนี้จึงเหมาะแก่การใช้งานตามวัตถุประสงค์
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Shanin, I. A., M. R. Karimova, and L. I. Mukhametova. "DEVELOPMENT OF FLUORESCENCE POLARIZATION IMMUNOASSAY OF PHTHALATES: COMPARISON OF DIFFERENT DERIVATIVES IN OBTAINING ANTIBODIES AND TRACERS." http://eng.biomos.ru/conference/articles.htm 1, no. 19 (2021): 232–34. http://dx.doi.org/10.37747/2312-640x-2021-19-232-234.

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Reagents for fluorescence polarization immunoassay (FPIA) of phthalates have been obtained: phthalate-protein conjugates, polyclonal antibodies, tracers - antigens labeled with fluorescein derivatives. By the example of dibutyl phthalate (DBP) with the use of a portable detector Sentry-200, the FPIA method was developed, which makes it possible to determine DBP in water samples in concentrations 1 μg / ml in 5 min.
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Lin, Xueming, Zeyu Guan, Jinquan Wan, Yongwen Ma, and Yan Wang. "Removal of phthalate from papermaking wastewater by MIL-101(Fe) in the presence of persulfate." March 2018 17, no. 03 (2018): 181–86. http://dx.doi.org/10.32964/tj17.03.181.

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Phthalates are found in most papermaking wastewater, as are various other pollutants. Phthalates such as diethyl phthalate (DEP) and dibutyl phthalate (DBP) are endocrine-disrupting compounds (EDCs). The objective of this research was to use metal organic frameworks (MOFs) MIL-101(Fe) as a new-style adsorbing material and persulfate (PS) activator for removing DEP and DBP from artificial aqueous model solutions. We used X-ray diffractometer, scanning electron microscope, and Fourier transform infrared spectroscopy technologies to characterize the MIL-101(Fe). More than 80% of the DEP and DBP were removed with a MIL-101(Fe)/PS system over a 5 h period when the initial concentrations of the pollutants (DEP or DBP) were around 3 ppm. MIL-101(Fe) was able to absorb the pollutants and activate persulfate, which together contributed to phthalate removal. As the amount of MIL-101 and PS was increased, the percentage of removed phthalate increased gradually. We concluded that the MIL-101(Fe)/PSsystem removed phthalate effectively from papermaking wastewater.
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Toptancı, İ., S. Kıralan, and O. Ketenoğlu. "A survey of phthalates in flavored olive oils from Turkey." Grasas y Aceites 74, no. 2 (2023): e502. http://dx.doi.org/10.3989/gya.1235212.

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Phthalates are organic contaminants that are used as plasticizers in many plastic food packaging materials. Because of their lipophilic character, oils are the primary source of human exposure to phthalates. In this study, the presence of five phthalate esters; diethylhexyl phthalate (DEHP), dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), diisononyl phthalate (DINP) and diisodecyl phthalate (DIDP) in olive oils flavored with different materials and marketed in Turkey in 2020 was determined. The samples included BBP, DINP, DIDP at lower concentrations than their LOQ. DEHP was the most abundant phthalate in all samples at varying concentrations between < LOQ to 1.81 mg/kg. The highest amount of DEHP was found in the oil sample flavored with bergamot (1.81 mg/kg). DBP was detected in 9 of the 25 samples at concentrations from 0.11 to 0.27 mg/kg.
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Kumar Singh, Abhishek, Minu Singh, Anshuman Srivastava, Yogesh Kumar Sharma, and Chandra Prabha Pandey. "AN ASSESSMENTOF PHTHALATES IN COSMETIC PRODUCTS BY DISPERSIVE LIQUID-LIQUID EXTRACTION METHOD USING HPLCAND LC-MS/MS." International Journal of Advanced Research 9, no. 03 (2021): 340–46. http://dx.doi.org/10.21474/ijar01/12590.

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A Dispersive liquid-liquid microextraction (DLLME) based analytical method was developed and validated using HPLC-PDA and LC-MS/MS for quantitative determination of phthalates (Dimethyl phthalate (DMP), Diethyl phthalate (DEP), Benzyl Butyl Phthalate (BzBP), Dibutylphthalate(DBP), Diethylhexyl phthalate(DEHP), Di-n-octyl phthalate (DOP) in different cosmetic products (After Shave Lotion, Deodorants, Perfume and Liquid Body Lotion). The DLLME based developed and validated analytical method was found specific, sensitive, accurate and precise. The accuracy (% recovery) of the method at a spiking level of 0.1, 0.5 and 1.0 mg L-1 in the different cosmetic product was found in the range of 92-108. The interday and intraday precision (%RSD) of the method was found less than 15. Out of six analyzed phthalates, only four phthalates were detected in different cosmetic products. Dimethyl phthalate (DMP) and Di-n-octyl phthalate (DOP) were detected in aftershave lotion. Diethyl phthalate (DEP) was detected in deodorants. Dibutyl phthalate (DBP) and Diethyl phthalate (DEP) were detected in perfumes. None of the phthalates were detected in liquid body lotion.
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Gayathri, D., and L. Shakila. "Metabolic Stress Responses in Labeo rohita Subjected to Di (2-ethylhexyl) Phthalate (DEHP), Dibutyl Phthalate (DBP), and Diethyl Phthalate (DEP)." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 17 (2024): 39–46. http://dx.doi.org/10.56557/upjoz/2024/v45i174344.

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This study investigates the stress response of glucose and cholesterol levels in Labeo rohita (Rohu) upon exposure to three widely used phthalates: Di(2-ethylhexyl) phthalate (DEHP), Dibutyl phthalate (DBP), and Diethyl phthalate (DEP). Phthalates, recognized for their endocrine-disrupting properties, are prevalent environmental contaminants. Specimens of Labeo rohita were subjected to environmentally relevant concentrations of DEHP, DBP, and DEP over a controlled period. Blood samples were collected periodically to measure fluctuations in glucose and cholesterol levels, serving as biomarkers of metabolic stress. The results indicate significant alterations in both glucose and cholesterol concentrations, with each phthalate demonstrating a distinct impact on these metabolic parameters. DEHP and DBP elicited more pronounced disruptions compared to DEP, underscoring their higher toxicity. These findings highlight the differential metabolic responses of Labeo rohita to various phthalates and underscore the ecological risks associated with phthalate contamination. The study advocates for stricter regulatory measures to mitigate phthalate pollution and protect aquatic ecosystems. This research enhances our understanding of the biochemical pathways affected by phthalate exposure and lays the groundwork for future investigations into the mechanisms underlying phthalate-induced stress in fish.
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Williams, Michael J., Lyle Wiemerslage, Priya Gohel, Sania Kheder, Lakshmi V. Kothegala, and Helgi B. Schiöth. "Dibutyl Phthalate Exposure Disrupts Evolutionarily Conserved Insulin and Glucagon-Like Signaling in Drosophila Males." Endocrinology 157, no. 6 (2016): 2309–21. http://dx.doi.org/10.1210/en.2015-2006.

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Phthalate diesters are commonly used as industrial plasticisers, as well as in cosmetics and skin care products, as a result people are constantly exposed to these xenobiotics. Recent epidemiological studies have found a correlation between circulating phthalate levels and type 2 diabetes, whereas animal studies indicate that phthalates are capable of disrupting endocrine signaling. Nonetheless, how phthalates interfere with metabolic function is still unclear. Here, we show that feeding Drosophila males the xenobiotic dibutyl phthalate (DBP) affects conserved insulin- and glucagon-like signaling. We report that raising flies on food containing DBP leads to starvation resistance, increased lipid storage, hyperglycemia, and hyperphagia. We go on to show that the starvation-resistance phenotype can be rescued by overexpression of the glucagon analogue adipokinetic hormone (Akh). Furthermore, although acute DBP exposure in adult flies is able to affect insulin levels, only chronic feeding influences Akh expression. We establish that raising flies on DBP-containing food or feeding adults DBP food affects the expression of homologous genes involved in xenobiotic and lipid metabolism (AHR [Drosophila ss], NR1I2 [Hr96], ABCB1 [MDR50], ABCC3 [MRP], and CYP3A4 [Cyp9f2]). Finally, we determined that the expression of these genes is also influenced by Akh. Our results provide comprehensive evidence that DBP can disrupt metabolism in Drosophila males, by regulating genes involved in glucose, lipid, and xenobiotic metabolism.
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Ali, Muhammad Muddassir, Taha Sahar, Sehrish Firyal, et al. "Assessment of Cytotoxic, Genotoxic, and Oxidative Stress of Dibutyl Phthalate on Cultured Bovine Peripheral Lymphocytes." Oxidative Medicine and Cellular Longevity 2022 (March 24, 2022): 1–6. http://dx.doi.org/10.1155/2022/9961513.

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Recently, there have been numerous reports showing that phthalates have negative human health impacts and may cause several diseases such as asthma, breast cancer, obesity, type II diabetes, and male infertility. Animals are also exposed to phthalates through the environment and can cause adverse health effects on them. Several studies have been found on the cytogenetic effects of dibutyl phthalate (DBP) on different organisms but no documented evidence has been found on the cytotoxic and genotoxic effects of dibutyl phthalate (DBP) on bovine cultured lymphocytes. MTT assay was performed on different series of DBP concentrations (10 μM, 20 μM, 30 μM, 50 μM, 70 μM, 100 μM). A concentration-dependent decrease in cell viability was observed by the DBP. The LD50, LD50/2, and 2 ∗ LD50 were found to be 50 μM, 30 μM, and 80 μM on bovine lymphocytes, respectively. Then, these concentrations of DBP were utilized to perform comet, micronucleus assays, and oxidative stress. A concentration-dependent increase in DNA damage, oxidative stress, and micronuclei formation was observed in lymphocytes by the DBP as compared to the control group. Highest genotoxic effects were observed at a concentration of 2 ∗ LD50. Similarly, total oxidative stress was found higher, and antioxidative stress was lower in concentration-dependent manner by the DBP. The current study revealed a significant cytotoxic, genotoxic, and oxidative stress of DBP on cultured bovine lymphocytes.
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Yasin, Siti Mariah Mohd, Suriani Ibrahim, and Mohd Rafie Johan. "Effect of Zirconium Oxide Nanofiller and Dibutyl Phthalate Plasticizer on Ionic Conductivity and Optical Properties of Solid Polymer Electrolyte." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/547076.

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New solid polymer electrolytes (SPE) based on poly(ethylene oxide) (PEO) doped with lithium trifluoromethanesulfonate (LiCF3SO3), dibutyl phthalate (DBP) plasticizer, and zirconium oxide (ZrO2) nanoparticles were prepared by solution-casting technique. The conductivity was enhanced by addition of dibutyl phthalate (DBP) plasticizer and ZrO2nanofiller with maximum conductivity(1.38×10-4 Scm-1). The absorption edge and band gap values showed decreases upon addition of LiSO3CF3, DBP, and ZrO2due to the formation of localized states in the SPE and the degree of disorder in the films increased.
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Han, Xiangning, and Daicheng Liu. "Detection of the toxic substance dibutyl phthalate in Antarctic krill." Antarctic Science 29, no. 6 (2017): 511–16. http://dx.doi.org/10.1017/s0954102017000281.

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AbstractHigh-performance thin layer chromatography was performed to investigate the potential presence of four phthalic acid esters, dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP) and dioctyl phthalate (DEHP), in Antarctic krill. The results revealed that in freeze-dried Antarctic krill levels of DBP (0.1043±0.0005 mg g-1 (104.3±0.05 mg kg-1)) were high. The structure of DBP in Antarctic krill was determined by gas chromatography-mass spectrometry. Its existence is of concern based on demonstrated harmful effects to animals and plants as Antarctic krill is a key part of the food chain in Antarctic coastal marine ecosystems. The adverse effects of DBP on Antarctic krill and the source of DBP should be explored in further research.
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Streszczenia konferencji na temat "Dibutyl phthalate (DBP)"

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Liu, Ning, Ming-Hong Wu, Gang Xu, Qing Yuan, Liang Tang, and Jia-xin Zhou. "Photolytical Property of Dibutyl phthalate (DBP)." In 2009 International Conference on Energy and Environment Technology. IEEE, 2009. http://dx.doi.org/10.1109/iceet.2009.575.

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Blagojević, Zorica, Milan Milenković, Danica Aranđelović, Katarina Jovanović, and Margarita Dodevska. "Testing of phthalate content in polymer toys." In Proceedings of the International Congress Public Health - Achievements and Challenges. Institute of Public Health of Serbia "Dr Milan Jovanović Batut", 2024. http://dx.doi.org/10.5937/batutphco24185b.

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Background: Phthalates, a group of synthetic organic compounds, have been subject of numerous studies due to their harmful effects on health. The use of bis(2-ethylhexyl)-phthalate (DEHP), dibutyl-phthalate (DBP), benzyl-butyl-phthalate (BBP) and diisobutyl-phthalate (DIBP) in concentrations equal to or greater than 0.1% by weight in plasticized materials is prohibited due to their classification as reproductive toxicants. Before ban, phthalates were used as polymer softeners in production of flexible, soft toys. Phthalates do not chemically bind to polymer, but are only incorporated into polymer structure, so they can migrate from plastic and thus pose a health hazard. Methods and Objectives: The testing of phthalate content included 90 polymer toys from the Belgrade market. The content of DEHP, DBP, BBP and DIBP was determined using HPLC-DAD (Agilent Technologies 1200 Series). Results: Baby teething toys (10) and toys made of hard polymeric materials (30) didn't contain phthalates (rattles, blocks, cars, figurines, kitchen sets). Of 30 doll samples, 15 (50%) had elevated levels of DEHP (0.15%-43.2%), and 6 of these also contained DBP (0.1%-0.30%). High phthalate content was found in softest parts: head, hands, and feet. The average DEHP content was 23.5%, which represents almost a quarter of percentage content of the plasticized material. Of 20 tested flexible samples (soft animal figures, unicorns, ducklings, dinosaurs, balls), 45% had elevated levels of phthalates. 9 samples contained DEHP (0.15%-21.9%), of which 5 also contained DBP (0.1%-12.5%). The average DEHP content was 9.3%, and DBP 4.6%, which is 93 times, and 46 times, higher than maximum allowed value. Conclusions: Testing phthalate content provides insight into the potential exposure of sensitive population groups. The study showed an increased risk of exposure to phthalates from flexible, soft toys. In order to protect and improve health and prevent disease, continuous monitoring and measures to reduce and eliminate exposure to phthalates are necessary.
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Liu, Fenny, Sean Huang, Sheng Fong Yu, Chun Yen Li, Liang-Yih Hung, and Yu Po Wang. "RoHS – Compliant Indirectly Material Evaluation for Manufacturing Study." In ASME 2022 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/ipack2022-97175.

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Abstract The restriction of hazardous substances directive is an environmental directive being passed by the European Union in February 2003. It was scheduled to be effective from on July 1, 2006. It mainly aims at product ingredients and engineering process standards in manufacturing. Any electrical and electronic equipment contains hazardous substances over the regulated limitation will not be allowed to be offered on the market in European Union. Mar 31, 2015, European Union issued a directive to add four new restrictions on the concentration of phthalates that were Bis(2-ethylhexyl) phthalate (DEHP), Butyl benzyl phthalate (BBP), Dibutyl phthalate (DBP) and Diisobutyl phthalate (DIBP). The limitation of concentration by weight is 0.1% for each substance. The phthalates which are used as plasticizers to be used in indirectly material as dicing tape for the semiconductor industry. Many related researches mentioned that temperature and time effects on the migration of DEHP, which means the product existed the risk to be contaminated. Therefore, DEHP is phased out from indirectly material to evaluate DEHP-free indirectly material. The manufacture result is shown in this study to evaluate new indirectly material without DEHP.
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Zhang, Bin, Guobing Sun, Panxiang Rong, and Xiangfa Zhao. "Detection of Dibutyl Phthalate (DBP) Content in Liquor Based on Near Infrared Technology." In 2019 IEEE 11th International Conference on Advanced Infocomm Technology (ICAIT). IEEE, 2019. http://dx.doi.org/10.1109/icait.2019.8935897.

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Huan, Li, Yu Jinghong, and Liu Shengyuan. "The association between dibutyl phthalate (DBP)-induced testicular function damage and endocrine disorders." In 2011 International Conference on Human Health and Biomedical Engineering (HHBE). IEEE, 2011. http://dx.doi.org/10.1109/hhbe.2011.6027889.

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Carlsten, C., N. E. Alexis, D. Maestre-Batlle, and A. Kocbach Bolling. "Systemic Immuno-Modulatory Effects of Dibutyl Phthalate (DBP) and Allergen Co-Exposure in Crossover Human Study." In American Thoracic Society 2020 International Conference, May 15-20, 2020 - Philadelphia, PA. American Thoracic Society, 2020. http://dx.doi.org/10.1164/ajrccm-conference.2020.201.1_meetingabstracts.a1801.

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