Electronic Journal of University of Aden for Basic and Applied Sciences最新文献_第3页

NEW METHODS FOR DETERMINATION OF AMBROXOL HYDROCHLORIDE IN PURE FORM AND FARMACEUTICAL FORMULATIONS BASED ON SPECTROPHOTOMETRY 用分光光度法测定盐酸氨溴索的纯剂型和制剂的含量

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-06-30 DOI: 10.47372/ejua-ba.2023.2.246

Mohamed Ahmed Saleh Al-Lahji, Y. Issa, Hussien Mohamed Abddel-fattah

{"title":"NEW METHODS FOR DETERMINATION OF AMBROXOL HYDROCHLORIDE IN PURE FORM AND FARMACEUTICAL FORMULATIONS BASED ON SPECTROPHOTOMETRY","authors":"Mohamed Ahmed Saleh Al-Lahji, Y. Issa, Hussien Mohamed Abddel-fattah","doi":"10.47372/ejua-ba.2023.2.246","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.246","url":null,"abstract":"The proposed methods are simple, rapid, and accurate, used for the determination of Ambroxol Hydrochloride (AMB.HCl). There were two methods, the First method included chromotrope 2R, chromotrope 2B, arsenazo I, ASPANDS, and chromotrope 2C for the determination of AMB.HCl in its pure and pharmaceutical forms. The first method is based on the drug oxidation with Potassium permanganate in excess. The unreacted potassium permanganate was determined by measuring the absorbance of colored chromotropic acid azo dyes namely chromotrope 2R, chromotrope 2B, arsenazo I, SPADNS, and chromotrope 2C. The suitable ƛmax were 500, 510, 500, 510, and 520 nm, respectively. Under optimized conditions, Beer’s Law showed good correlation and obeyed in the concentration range 1.51-7.46, 0.82-4.97, 1.65-6.63, 0.82-6.63, and 1.73-8.29 µg mL-1 for chromotrope 2R, chromotrope 2B, arsenazo I , SPADNS, and chromotrope 2C. The apparent molar absorptivity, Sandell sensitivity, LOD, and LOQ were calculated. Pure and pharmaceutical forms containing AMB.HCl were analyzed and tested for the validity of the proposed methods. The Second method spectrophotometric titration is based on the determination of unreacted potassium permanganate using spectrophotometric titration against ferrous ammonium sulfate, where the end-point was detected spectrophotometrically using ferrion indicator at 510 nm, the Relative standard deviation where 0.23-2.04 with average recovery 100.35-103%.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77711840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

OPTICAL AND DIELECTRIC PROPERTIES OF EPOXY RESIN FILLED WITH TITANIUM DIOXIDE PARTICLES 二氧化钛填充环氧树脂的光学和介电性能

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-06-30 DOI: 10.47372/ejua-ba.2023.2.250

M. S. Al-Salimi, Wesam R. N. Ali, Khaled M. Habeb

引用次数: 0

تأثير إضافة مسحوق الكركم إلى عليقة دجاج اللحم على الاداء الانتاجي وبعض صفات الذبيحة 在鸡干上添加葡萄干粉对生产表现和某些祭物的影响

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-06-30 DOI: 10.47372/ejua-ba.2023.2.248

Salem Nasser Hussein, Abdel-Wahed Awad Ahmed

{"title":"تأثير إضافة مسحوق الكركم إلى عليقة دجاج اللحم على الاداء الانتاجي وبعض صفات الذبيحة","authors":"Salem Nasser Hussein, Abdel-Wahed Awad Ahmed","doi":"10.47372/ejua-ba.2023.2.248","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.2.248","url":null,"abstract":"نفذت هذه الدراسة في حظيرة الدواجن بكلية ناصر للعلوم الزراعية – جامعة عدن خلال الفترة من 3/2/2021 إلى2 /3/2021. وذلك لبحث تأثير إضافة مستويين من مسحوق الكركم في عليقة دجاج اللحم على الاداء الانتاجي وبعض مقاييس الذبيحة باستخدام عدد 90 كتكوت لحم غير مجنس من سلاسة Ross من عمر 7 – 35 يوم وزعت عشوائياً على ثلاث معاملات ( 30 كتكوت/ معاملة ) وضعت في ثلاث مكررات (10 كتاكيت / مكرر) وكانت المعاملات كما يلي: (T1) تقديم عليقة قياسية دون أية اضافات ( شاهد )، (T2) تقديم عليقة قياسية مع إضافة 0.25% مسحوق كركم، (T3) تقديم عليقة قياسية مع إضافة 0.5% مسحوق كركم. اظهرت النتائج تفوقاً معنويا (P<0.05) للمعاملتين الثانية والثالثة في صفات وزن الجسم، الزيادة الوزنية وكفاءة التحويل الغذائي مقارنة مع المعاملة الأولى، وتفوق معنوي (P<0.05) للمعاملة الثالثة على المعاملة الثانية في صفات وزن الجسم والزيادة الوزنية، وزيادة معنوية (P<0.05) في نسبة تصافي الذبيحة للمعاملتين الأولى والثالثة مقارنة مع المعاملة الثانية. في حين لم تظهر أي اختلافات معنوية بين المعاملات في صفات استهلاك العلف والنسبة المئوية لقطع (الصدر والفخذان) والاحشاء الصالحة للأكل (الكبد والقلب والقانصة) منسوبة إلى وزن الجسم قبل الذبح. نستنتج من هذه الدراسة بأن إضافة مسحوق الكركم بنسبة 0.25% و 0.5 % في عليقة دجاج اللحم قد حسن الاداء الانتاجي وبالتالي يمكن استخدامه كمحفز للنمو.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80654481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

THEORETICALLY PREDICTED DEVIATION IN PHYSICAL PROPERTIES OF GE-BI-S CHALCOGENIDE ALLOYS WITH COMPOSITIONAL VARIATIONS 理论预测了ge-bi-s硫系合金物理性能随成分变化的偏差

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-03-31 DOI: 10.47372/ejua-ba.2023.1.221

M. Dabban, Esam M. G. Al-Badwi, Sarah M. Al-Khadher

{"title":"THEORETICALLY PREDICTED DEVIATION IN PHYSICAL PROPERTIES OF GE-BI-S CHALCOGENIDE ALLOYS WITH COMPOSITIONAL VARIATIONS","authors":"M. Dabban, Esam M. G. Al-Badwi, Sarah M. Al-Khadher","doi":"10.47372/ejua-ba.2023.1.221","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.1.221","url":null,"abstract":"Chalcogenide glasses (ChGs) semiconductors have several useful properties, especially in their technical applications. The present work explains the compositional dependence of many physical properties of GexBi5S95-x (x = 0, 10, 20, 30, 35 and 45 at. %). Increasing Ge content reduces the fraction of floppy modes, the lone pair electrons, the stoichiometric deviation, and the heat of atomization, while the average coordination number 〈r〉, constraints, density, and molar volume increased, indicating the alloys have moved from floppy to rigid mode. The average overall bond energy, electronegativity difference, band gap energy, and glass transition temperature were estimated by analyzing the bond energies and its distribution based on the bond ordered network model (CONM). It has been found that all these parameters increase with Ge ≤ 30 at. % and decrease with the further increase of Ge content. This behavior can be explained in terms of the network chemical percolation threshold proposed by Tanaka. This threshold represents a topological phase transition from a two-dimensional structure at r˂2.67 to a three-dimensional structure at r≥2.67. The incorporation of Ge into the glassy Bi-S system yields interesting physical properties such as threshold and phase transition, confirming this composition's suitability for optical storage media.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83852213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EFFECT OF ALCOHOLIC EXTRACT OF CLOVE (SYZYGIUM AROMATICUM) ON VIABILITY OF PROTOSCOLICES OF SHEEP HYDATID CYSTS IN VITRO 丁香醇提物对绵羊包虫囊原棘活力的影响

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-03-31 DOI: 10.47372/ejua-ba.2023.1.226

Hiam Abdull-hameed Saleh Mohammed, A. J. Binsaad

{"title":"EFFECT OF ALCOHOLIC EXTRACT OF CLOVE (SYZYGIUM AROMATICUM) ON VIABILITY OF PROTOSCOLICES OF SHEEP HYDATID CYSTS IN VITRO","authors":"Hiam Abdull-hameed Saleh Mohammed, A. J. Binsaad","doi":"10.47372/ejua-ba.2023.1.226","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.1.226","url":null,"abstract":"Clove (Syzygium aromaticum) is one of the most valuable spices that has been used for centuries as food preservative and for many medicinal purposes such as antispasmodic, carminative, antioxidant and antimicrobial. This study was aimed to evaluate the effects of alcoholic extract of clove, on the viability of Echinococcus granulosus protoscolices in vitro. Different concentrations of the clove extract were assessed (1, 50 and 100 mg /ml). The results of the current study showed significant complete inhibition (100%) of protoscolices viability in vitro treated with100 mg/ml of alcoholic extract of S. aromaticum after 3 hours of exposure. Also, 85% inhibition with concentration of 50 mg/ml after 3 hours, progressing to complete inhibition of protoscolices viability after 4 hours. With concentration of 1 mg /ml, 70 % inhibition was observed after 3 hours, progressing to 100% inhibition after 5 hours of exposure to S. aromaticum alcoholic extract. There were significant correlations between efficacy and concentration and between efficacy and exposure time.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88262264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ASSESSMENT OF NATURAL RADIOACTIVITY LEVEL AND ASSOCIATED RADIOLOGICAL HAZARDS IN MARINE SEDIMENT SAMPLES COLLECTED FROM ABYAN BEACH, GULF OF ADEN, YEMEN 也门亚丁湾阿比扬海滩海洋沉积物样本天然放射性水平及相关放射性危害评估

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-03-31 DOI: 10.47372/ejua-ba.2023.1.217

Fuad Abdo As-Subaihi, Tahir Abdullah Abdulgabar Salem, Mahmood Ahmed

{"title":"ASSESSMENT OF NATURAL RADIOACTIVITY LEVEL AND ASSOCIATED RADIOLOGICAL HAZARDS IN MARINE SEDIMENT SAMPLES COLLECTED FROM ABYAN BEACH, GULF OF ADEN, YEMEN","authors":"Fuad Abdo As-Subaihi, Tahir Abdullah Abdulgabar Salem, Mahmood Ahmed","doi":"10.47372/ejua-ba.2023.1.217","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.1.217","url":null,"abstract":"Twenty three marine sediment samples taken from the side beach from the Abyan beach, Aden Gulf, Yemen to measuring the activity concentration of terrestrial radionuclides radium-226, thorium-232 and potassium-40 and its associated hazard indices using gamma spectrometer with High-Purity Germanium HPGe detector. The average activity concentration of natural radionuclides 226Ra, 232Th and 40k in marine sediments samples under investigation were 16.25± 0.63Bqkg-1, for Ra-226, 23.80± 1.46Bqkg-1 for Th-232 and 518.54±44.61Bqkg-1 for K-40 respectively. The radiation hazard indices which resulting from the presence of natural radionuclides in marine sediment samples were calculated and the obtained results indicate that the average value of radium equivalent activity was 90.21Bqkg-1. The average value of External hazard index Hex was 0.243 and the average values of internal hazard index Hin was 0.287. The average value of outdoor absorbed dose rate Dout was 43.66nGyh−1 and indoor absorbed dose rate Din was 83.13nGyh−1. The average values of annual outdoor effective dose AEDout was 0.053mSvy-1and the annual indoor effective dose AEDin was 0.407mSvy-1. The average values of the annual gonadal dose equivalent AGDE were 312.52μSvy-1. While the average values of outdoor excess life-time cancer risk ELCRout was 0.187×10−3 and the indoor excess life-time cancer risk ELCRin was 1.427×10−3. They are less than worldwide limits.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83091185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ASSOCIATION BETWEEN CHRONIC KHAT (CATHA EDULIS) CHEWING AND PLASMA LIPID PROFILE AMONG ADULT MALES FROM AL SHUAIB DISTRICT DHALA GOVERNURATE.YEMEN 来自达拉省al shuaib地区的成年男性慢性阿拉伯茶(catha edulis)咀嚼与血浆脂质谱之间的关系。也门

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-03-31 DOI: 10.47372/ejua-ba.2023.1.224

Abdullah Mohamed Ahmed Saleh Blgeth, Galal Mohammed Salem Assakaf

{"title":"ASSOCIATION BETWEEN CHRONIC KHAT (CATHA EDULIS) CHEWING AND PLASMA LIPID PROFILE AMONG ADULT MALES FROM AL SHUAIB DISTRICT DHALA GOVERNURATE.YEMEN","authors":"Abdullah Mohamed Ahmed Saleh Blgeth, Galal Mohammed Salem Assakaf","doi":"10.47372/ejua-ba.2023.1.224","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.1.224","url":null,"abstract":"This study aims to investigate the association between chronic khat chewing (5 to 30 years duration) and dyslipidemia among healthy males in Al Shuaib District. One hundred participants from different villages agreed to complete the study with us. In this cross sectional study sample objects 230 males were selected randomly and divided according to ages and chewing khat duration, into four groups each (n= 20) and a control group of (n=20) non khat chewers. Data were obtained using a questionnaires and fasting blood sample collected and examined for lipid profile measurements including levels of total cholesterol TC, triglyceride TG, low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C).The mean levels of TC in groups D (179.5mg/dl) and E (180mg/dl) was higher significantly than control group subjects (156mg/dl). levels of HDL decreased in khat chewers; D and E groups (44.5mg/dl and 41mg/dl) respectively compared to the control group (46.4mg/dl). On the other hand, the average LDL increased in the D and E subject groups (103.4mg/dl) and (112.4mg/dl) respectively compared with control 93.8mg/dl. The level of TG was increased in all study groups A, B, D and E having statistical significance p < 0.05 compared with control C. There was a higher dyslipidemia among subjects of khat chewing groups than non khat chewers in relation to increase of mean years of khat chewing. There is a significant association between chronic khat chewing and dyslipidemia especially the decrease in HDL-C level was the main lipid variable followed by TG level. The imbalanced lipid profile might be due to genetic factor or social dietary habits, besides wide spread use of pesticides during cultivation of khat plant which have toxicity in area of study.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87600475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

الصفات المظهرية والعددية وعمر أسماك الناقم POMADASYS ARGENTEUS (FORSSKAL,1775) عائلة: HAEMULIDAE في سواحل محافظة عدن - اليمن 亚丁省沿海地区的鱼的外表特征和数量和年龄(福斯卡，1775)

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-03-31 DOI: 10.47372/ejua-ba.2023.1.219

Eshrak Abdulqader AL-Nawi, Kamal Ahmed Baaoom, Taha Saleh Salem

{"title":"الصفات المظهرية والعددية وعمر أسماك الناقم POMADASYS ARGENTEUS (FORSSKAL,1775) عائلة: HAEMULIDAE في سواحل محافظة عدن - اليمن","authors":"Eshrak Abdulqader AL-Nawi, Kamal Ahmed Baaoom, Taha Saleh Salem","doi":"10.47372/ejua-ba.2023.1.219","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.1.219","url":null,"abstract":"تم دراسة الصفات المظهرية والعددية لأسماك الناقم Pomadasys argenteus من بعض سواحل خليج عدن للفترة من يوليو 2021م إلى يونيو 2022م، جُمعت 223 عينة من أسماك الناقم تراوح طولها من 18 – 47 سم، بوزن 85 – 1230 جم، تمَ قياس 20 صفة مظهرية (الطول الكلي، الطول الشوكي، الطول القياسي، طول الرأس، عمق الرأس، قطر العين، الطول ما قبل العين، عمق الجسم، الطول ما قبل الزعنفة الظهرية، طول الزعنفة الظهرية، الطول ما قبل الصدر، طول الزعنفة الصدرية، الطول ما قبل الحوض، طول الزعنفة الحوضية، الطول ما قبل الشرج، طول الزعنفة الشرجية، طول الزعنفة الذيلية، ارتفاع الزعنفة الذيلية، طول السويقة الذيلية وعمق السويقة الذيلية) وتسع صفات عددية (اشواك الزعنفة الظهرية، أشعة الزعنفة الظهرية، أشواك الزعنفة الشرجية، أشعة الزعنفة الشرجية، أشعة الزعنفة الصدرية، أشواك الزعنفة الحوضية، أشعة الزعنفة الحوضية، أشعة الزعنفة الذيلية والأسنان الخيشومية). أظهرت نتائج الدراسة أن القياسات الشكلية لأجزاء الجسم المختلفة اعتمدت على الطول الكلي للجسم. وجدت زيادة تدريجية في القياسات المظهرية مع الزيادة في طول الجسم. أجري تحليل الانحدار بين المتغير المستقل الطول الكلي والمتغيرات التابعة، كما أُجري تحليل الانحدار بين المتغير المستقل طول الرأس والمتغيرات التابعة قطر العين والمسافة ما قبل العين. أظهرت النتائج وجود علاقة خطية موجبة بين القياسات المظهرية المختلفة مع الطول الكلي وطول الرأس، بالإضافة إلى درجة متوسطة إلى عالية من الارتباط. من ناحية أخرى كانت القياسات العددية ثابتة مع الزيادة في طول الجسم، فصيغة الزعنفة كتالي: D XII, 14; A- III, 7; P 16 - 17; V I, 5; C 17، وعدد الاسنان الخيشومية (0.06 ± 17.5). تمثلت علاقة الطول الكلي بالوزن الكلي بالمعادلة الأتية: W = 0.015 TL2.8475 , R2 = 0.9813. تراوحت أعمار أسماك الناقم بين (0 - 7) سنوات.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85756533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EVALUATION OF THE LEVELS OF HYDROQUINONE AND HEALTH RISK ASSESSMENT OF TOXIC METALS IN SKIN-WHITENING CREAMS 美白面霜中对苯二酚含量评估及有毒金属健康风险评估

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-03-31 DOI: 10.47372/ejua-ba.2023.1.228

T. Osobamiro, Oluwadamilare S. Kukoyi, O. Awolesi

{"title":"EVALUATION OF THE LEVELS OF HYDROQUINONE AND HEALTH RISK ASSESSMENT OF TOXIC METALS IN SKIN-WHITENING CREAMS","authors":"T. Osobamiro, Oluwadamilare S. Kukoyi, O. Awolesi","doi":"10.47372/ejua-ba.2023.1.228","DOIUrl":"https://doi.org/10.47372/ejua-ba.2023.1.228","url":null,"abstract":"This study assessed the level of toxic metals and hydroquinone in skin-lightening-creams commonly use in Ogun State, Nigeria. The pH of all the cream samples was determined and metals quantification was carried out using ICP-OES after acid digestion while that of hydroquinone was done using HPLC. The health risk of dermal exposure to heavy metals via the regular application was done by evaluating the carcinogenic and non-carcinogenic risk. The pH of all the samples are acidic and it follows this trend; Sample 3 > Sample 1 > Sample 4 > Sample 2. All the metals considered in this study were detected in all the analyzed samples except Cd, Co and Cr in sample 1, As, Ba and Pb in sample 2, Ag, As and Hg in sample 3 and Ba in sample 4. Highest levels of Al, Co, Pb and Zn were recorded in Sample 3 (Organic cream). Though the concentrations of most of the toxic metals (Al, Zn and Mn) are above the permissible levels, they pose no non-carcinogenic health risk based on the calculated HQ and HI. The carcinogenic risk of metals in the sampled creams were all within the acceptable limit except that of Cd. Hydroquinone was detected in all the four samples analyzed ranging between 2.58 and 4.17 % which exceeded the permissible limit by WHO. This finding show that long-term use of skin-whitening-creams may pose serious health hazards so, public should be continually enlightening on the hazardous health effects of the use.","PeriodicalId":11552,"journal":{"name":"Electronic Journal of University of Aden for Basic and Applied Sciences","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72799536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On Fuzzy Pre-Λ-Sets and Fuzzy Semi-Λ- Sets 模糊预集-Λ-Sets和模糊半集-Λ

Electronic Journal of University of Aden for Basic and Applied Sciences Pub Date : 2023-03-31 DOI: 10.47372/ejua-ba.2023.1.229

R. M. Aqeel, Anhar Ahmed Nasser

引用次数: 0