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The Role of Music Therapy in Supporting Intellectually Disabled Youth in Senegal
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作者 Raymond Birane Youm Kadidiatou Diarra +1 位作者 Mathias Pouye Jean Augustin Diégane Tine 《Health》 2024年第5期521-534,共14页
Introduction: Music therapy is a practice for helping and supporting people with intellectual and relational difficulties. This study illustrated the benefits of music therapy for young people living with intellectual... Introduction: Music therapy is a practice for helping and supporting people with intellectual and relational difficulties. This study illustrated the benefits of music therapy for young people living with intellectual disabilities (YLID) in an African context. Methodology: This study investigated six young individuals with intellectual disabilities who had undergone three years of music therapy. They were participants in the inclusive non-academic training program at the National School of Arts in Dakar from 2017 to 2019. Data collection utilized individual interviews with the youths, evaluation grids from teachers and psychiatrists. Guardians provided informed consent along with the assent of the young participants. Results: The six young were aged between 18 and 30 years old, with an average age of 24.6 years. Four of the YLID were male. Three young people with intellectual disabilities had delayed psychomotor development. Observations revealed the beneficial influence of music therapy on the health and well-being of young individuals. Music played a role in alleviating stress and anxiety among youth with intellectual disabilities (YLID), enhancing their mood and mental health. It assisted in navigating challenging situations and heightened alertness among YLID. Additionally, music therapy contributed to improvements in dyslexia, fine and gross motor skills, and memory development among intellectually disabled youth, ultimately facilitating their integration into society. Conclusion: In light of our results, music therapy makes a major contribution to the empowerment of YLID. Engaging in musical activities helps young people connect with others through instrumental expression and a sense of accomplishment. By facilitating music therapy, it becomes possible to combat discrimination and stigmatization, thus promoting the social inclusion of intellectually disabled youth. Therefore, it is important to promote music therapy in Senegal to meet the needs of YLID. 展开更多
关键词 Music Therapy YOUNG intellectual Disabilities Senegal
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Associated Factors of Dental Caries among Intellectually Disabled Persons in Specialized Centers of Ouagadougou
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作者 Jocelyne Valerie Gare Filwende Dan Kientega +3 位作者 Ouedraogo Carole Nathaie Tenin Ouattara Seydou Kabore Wendpoulomde Aime Désire Nicolas Meda 《Open Journal of Epidemiology》 2024年第2期297-311,共15页
Introduction: Several studies have reported a high prevalence of dental caries among the people with intellectual disabilities. In order to identify the sociodemographic, clinical and behavioral factors associated wit... Introduction: Several studies have reported a high prevalence of dental caries among the people with intellectual disabilities. In order to identify the sociodemographic, clinical and behavioral factors associated with it, we conducted a study in specialized centers welcoming subjects with intellectual disabilities in Ouagadougou (Burkina Faso). Objectives: The objective of this study was to identify the factors associated with it among intellectually disabled in the specialized centers of Ouagadougou. Methods: The study was cross-sectional analytical. The survey took place between November 2020 and January 2021 among people with intellectual disabilities in reception centers receiving a grant from the Ministry of Women, National Solidarity, Family and Humanitarian Action. Data collection was done with a questionnaire adapted from the World Health Organization (WHO) and dental caries was recorded according to WHO criteria in decayed, missing or filled teeth generating a DMF index. Logistic regression was used to identify factors associated with the presence of dental caries. Results: A total of 193 participants were included in the study with an average age of 12.4 years ± 7.9. The overall prevalence of caries measured with the DMF index was 58.6% 95% CI [51.2 - 65.8]. It was significantly associated with female gender (OR = 4.2;95% CI [1.4 - 12.5], p = 0,01), the clinical form of mental illness (epilepsy OR = 3.8 95%;CI [1.2 - 12.7], p = 0,02, trisomy OR = 5.0;95% CI [1.1 - 22.9], p = 0,03, motor autonomy OR = 0.2 95%;CI [0.1 - 0.7], p = 0,01) and at use of toothpaste OR = 9.33;95% CI [1.05 - 82.7], p = 0,04. Conclusion: Dental caries remains a very present pathology in most people living with an intellectual disability. Also, it is necessary to put in place prevention strategies to reduce its prevalence and improve access to oral care for these people. 展开更多
关键词 Dental Caries Mental Disability intellectual Disability Associated Factors OUAGADOUGOU
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Understanding Behavioral Manifestations of Obsessive-Compulsive Disorder in People with Intellectual Disabilities—A Qualitative Study
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作者 Lena Grüter Matthias Grünke 《Open Journal of Psychiatry》 2024年第2期67-90,共24页
Background: There is limited knowledge about obsessive-compulsive disorder (OCD) in people with intellectual disabilities (IDs). This paper describes the manifestation of compulsive behaviors associated with OCD at th... Background: There is limited knowledge about obsessive-compulsive disorder (OCD) in people with intellectual disabilities (IDs). This paper describes the manifestation of compulsive behaviors associated with OCD at the behavioral level in people with ID in institutionalized settings. The aim was to gain nuanced insight into appropriate understanding and classification in this specific context, and derive implications for research and practice. Methods: Individual cases of people with ID (n = 7) were studied to assess compulsive symptoms through two days of on-site observation of the person with ID within the institution, guided group discussions (n = 28), and semi-structured interviews with key informants and caregivers of the person with ID (n = 20). Caregiver ratings of the compulsive behavior checklist were compiled. Data were analyzed using qualitative content analysis. Results: All forms of OCD were present. Characteristics of compulsive behaviors in people with ID at the behavioral level included less complex and more obvious compulsive acts, immediate responses, signs of tension, motor restlessness, facial expression changes, repetition, need for predictability, time-consuming behaviors, and aggressive reactions when these acts were interrupted. Some of the compulsive behaviors corresponded to the ICD-11 OCD code 6B20, and others to compulsions as a psychological symptom (MB23.4). Conclusions: OCD may manifest atypically at the behavioral level in people with ID, posing significant challenges for accurate classification due to symptom ambiguity. Follow-up differential diagnostic studies are needed to more accurately identify and differentiate OCD symptoms in people with ID. Further, disorder-specific guidelines for recognizing OCD in people with ID are needed for institutionalized settings without psychiatric-psychotherapeutic expertise. 展开更多
关键词 People with intellectual Disabilities Obsessive-Compulsive Disorder Compulsive Behavior DIAGNOSTICS Differential Diagnosis
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Scientific Data Intellectual Property Research by Literature Statistics
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作者 ZHANG Jia WANG Xirong 《Cultural and Religious Studies》 2024年第2期87-94,共8页
The main obstacle to the open sharing of scientific data is the lack of a legal protection system for intellectual property.This article analyzes the progress of research papers on intellectual property in scientific ... The main obstacle to the open sharing of scientific data is the lack of a legal protection system for intellectual property.This article analyzes the progress of research papers on intellectual property in scientific data in China through literature search and statistics.Currently,research subjects are unbalanced,research content is uneven,research methods are intellectual single,and research depth is insufficient.It is recommended that different stakeholders engage in deep cross disciplinary cooperation,further improve China’s legal and policy protection system for scientific data intellectual property,and promote the open sharing of scientific data. 展开更多
关键词 scientific data intellectual property BIBLIOMETRICS STAKEHOLDERS INTERDISCIPLINARY
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Application of Automation and Intellectualization Technology in Steelmaking Plant
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作者 Yue Li Danjing Zhen 《Frontiers of Metallurgical Industry》 2024年第1期19-22,共4页
Steelmaking plant of Fujian San Gang min Guang Co.,Ltd.is keeping pace with the trend of the times.Under the new situation that the labor cost is rising day by day.Constantly introducing intelligent technology to impr... Steelmaking plant of Fujian San Gang min Guang Co.,Ltd.is keeping pace with the trend of the times.Under the new situation that the labor cost is rising day by day.Constantly introducing intelligent technology to improve the level of automation operation and reducing labor intensity of staff and workers.Especially under the support of MES information system.Advanced and practical technology is adopted in converter,refining and continuous casting process.In recent years,production management and control,energy management and control,material tracking,cost control and equipment operation and maintenance and reducing personnel to new achieve-ments in reducing personnel. 展开更多
关键词 intellectual technology Automtic level CONVERTER continuous casting REFINING
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PAN-S吸光光度法测定钯 被引量:9
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作者 魏琴 徐秋云 凌永萍 《理化检验(化学分册)》 CAS CSCD 北大核心 1995年第3期161-162,共2页
研究了PAN-S与Pd(Ⅱ)的显色反应条件,配合物的最大吸收波长于598nm处,表观摩尔吸光系数εo 1.04×10^4.Pd(Ⅱ)在0~60μg/25ml内服从比耳定律。用拟订的方法测定钯-碳催化剂和镍-铝催化... 研究了PAN-S与Pd(Ⅱ)的显色反应条件,配合物的最大吸收波长于598nm处,表观摩尔吸光系数εo 1.04×10^4.Pd(Ⅱ)在0~60μg/25ml内服从比耳定律。用拟订的方法测定钯-碳催化剂和镍-铝催化剂中的Pd(Ⅱ)结果良好。 展开更多
关键词 pan-S 吸光光度法 催化剂
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NH_4HCO_3溶液中PAN-基碳纤维电化学改性机理 被引量:17
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作者 曹海琳 黄玉东 张志谦 《复合材料学报》 EI CAS CSCD 北大核心 2004年第3期22-27,共6页
 采用循环伏安扫描法和XPS、AFM技术对在NH4HCO3溶液中经过电化学改性处理的PAN-基碳纤维的电化学特性、表面化学构成和表面形貌变化进行了分析。结果表明,在NH4HCO3溶液中纤维表面主要发生了水的电解析氧反应和部分电活性物质的电化...  采用循环伏安扫描法和XPS、AFM技术对在NH4HCO3溶液中经过电化学改性处理的PAN-基碳纤维的电化学特性、表面化学构成和表面形貌变化进行了分析。结果表明,在NH4HCO3溶液中纤维表面主要发生了水的电解析氧反应和部分电活性物质的电化学氧化反应;纤维表面各含氧官能团含量随处理时间的延长不断变化,NH+4与纤维表面官能团反应使纤维表面引入大量的酰胺基团;纤维表面形貌在点蚀和气动剥蚀效应的联合作用下不断粗化。 展开更多
关键词 电化学处理 pan-基碳纤维 表面改性 NH4HCO3
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PAN-S光度法高选择性测定头发中铁 被引量:1
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作者 李东 连国军 谢作叙 《理化检验(化学分册)》 CAS CSCD 北大核心 2002年第6期301-301,303,共2页
关键词 pan-S 光度法 测定 头发 微量元素 分析 显色剂
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电解液对PAN-基碳纤维电化学改性效果的影响 被引量:8
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作者 曹海琳 黄玉东 +1 位作者 张志谦 姚旺 《材料科学与工艺》 EI CAS CSCD 2004年第1期24-28,共5页
分别采用磷酸、氢氧化钠和碳酸氢铵3种电解液对PAN-基碳纤维进行电化学改性处理,研究电解液种类对碳纤维电化学改性效果的影响规律.通过酸碱滴定法、原子力显微镜表征和复合材料界面剪切强度(IFSS)测试,分析纤维表面酸性官能团含量、表... 分别采用磷酸、氢氧化钠和碳酸氢铵3种电解液对PAN-基碳纤维进行电化学改性处理,研究电解液种类对碳纤维电化学改性效果的影响规律.通过酸碱滴定法、原子力显微镜表征和复合材料界面剪切强度(IFSS)测试,分析纤维表面酸性官能团含量、表面形貌及其复合材料界面强度的变化规律.研究结果表明:采用磷酸和氢氧化钠电解液处理时,纤维表面酸性官能团含量随着电流强度的增加先迅速增大而后逐渐减少,电流强度为0 4A/g时达到最大值;采用碳酸氢铵电解质时,纤维表面酸性官能团含量随着电流强度的增大先缓慢增大而后迅速减少,电流强度为1 4A/g时达到最大值.针对纤维表面形貌的AFM分析表明,在磷酸和氢氧化钠电解液中处理时,复合材料的IFSS主要受纤维表面刻蚀作用的影响,而采用碳酸氢铵电解液处理时,复合材料的IFSS主要受纤维表面酸性官能团含量的影响. 展开更多
关键词 pan-基碳纤维 电化学改性 磷酸 磷酸 氢氧化钠 碳酸氢铵 电解液 电流强度 碳纤维增强树脂基复合材料
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PAN-6S作络合指示剂连续滴定测定汞和铅的研究 被引量:7
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作者 王京平 吴中明 《分析试验室》 CAS CSCD 北大核心 2004年第2期60-62,共3页
试验研究了pH3.0和pH5.4的介质中,以1 (2 吡啶偶氮) 2 萘酚 6 磺酸(PAN 6S)作为指示剂,以EDTA为滴定剂连续滴定汞和铅,其终点颜色变化敏锐,准确度高。
关键词 连续滴定 络合指示剂 pan-6S 1-(2-吡啶偶氮)-2-萘酚-6-磺酸 废水分析
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人发中微量锌的PAN-S分光光度法测定研究 被引量:1
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作者 赵小波 王京平 +2 位作者 费正皓 万云 孙玉凤 《化学世界》 CAS CSCD 北大核心 2011年第9期519-522,共4页
以PAN-S[1-(2-吡啶偶氮)-2-萘酚-6-磺酸]为显色剂,在pH值为8.5的氨缓冲溶液的条件下,用分光光度计测定人发中的锌。其配合物的最大吸收波长为530nm,表观摩尔吸光系数为1.14×104L/(mol.cm),锌含量在0~21μg/(25 mL)范围内符... 以PAN-S[1-(2-吡啶偶氮)-2-萘酚-6-磺酸]为显色剂,在pH值为8.5的氨缓冲溶液的条件下,用分光光度计测定人发中的锌。其配合物的最大吸收波长为530nm,表观摩尔吸光系数为1.14×104L/(mol.cm),锌含量在0~21μg/(25 mL)范围内符合朗伯-比尔定律。测定结果的相对标准偏差为0.86%~1.3%,加标回收率为97.0%~99.7%。 展开更多
关键词 pan-S 分光光度法 人发样 ZN
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用TritonX-100-PAN-S作为络合滴定指示剂测定铜 被引量:1
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作者 李敏 连国军 《广东微量元素科学》 CAS 2004年第2期56-58,共3页
研究了用TritonX-100-PAN-S作为络合滴定指示剂测定铜的方法。在pH 4.5的乙酸-乙酸钠介质中,采用PAN-S为指示剂,以TritoX-100增敏、增稳,用EDTA为络合剂滴定铜。结果表明,待测溶液在测定终点前和达到终点时对比度为79 nm,滴定标准偏差为... 研究了用TritonX-100-PAN-S作为络合滴定指示剂测定铜的方法。在pH 4.5的乙酸-乙酸钠介质中,采用PAN-S为指示剂,以TritoX-100增敏、增稳,用EDTA为络合剂滴定铜。结果表明,待测溶液在测定终点前和达到终点时对比度为79 nm,滴定标准偏差为0.039,共存离子的影响小,指示剂在室温下保存至少稳定6个月。可认为用TritonX-100-PAN-S作金属指示剂,能改善反应条件,提高变色灵敏度,是一种优于PAN的金属指示剂。 展开更多
关键词 络合滴定 pan-S
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水溶性有机试剂PAN-6s的纯化方法 被引量:2
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作者 王京平 《化学世界》 CAS CSCD 北大核心 2001年第1期38-40,共3页
报告了 PAN直接磺化法制备 PAN- 6s的盐析提纯方法 ,筛选出价格低廉 ,本身不含结晶水、并且其溶解度基本不随温度变化而变化的氯化钠为盐析剂 ,避免了水重结晶易使杂质包藏在产品晶体中的缺陷 ,大大地改善了产品的纯度 ,用该法可获纯度... 报告了 PAN直接磺化法制备 PAN- 6s的盐析提纯方法 ,筛选出价格低廉 ,本身不含结晶水、并且其溶解度基本不随温度变化而变化的氯化钠为盐析剂 ,避免了水重结晶易使杂质包藏在产品晶体中的缺陷 ,大大地改善了产品的纯度 ,用该法可获纯度达 99.63%的产品 ,而水重结晶法所获产品的纯度仅在 88.83% ,经红外光谱和液相色谱表征 。 展开更多
关键词 直接磺化法 盐析法 水溶性有机试剂 pan-6S 纯化 分析试剂
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PAN-6S和次甲基蓝作配合滴定混合指示剂——连续测定铜和镉的应用研究 被引量:2
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作者 王京平 王燕 《化工时刊》 CAS 2004年第10期56-58,共3页
研究了PAN - 6S和次甲基蓝混合指示剂配合滴定连续测定和铜的行为。在pH值 5 .4的六次甲基四胺—HCl介质中 ,以PAN - 6S和次甲基蓝为混合指示剂 ,EDTA为滴定剂连续滴定和铜 ,滴定终点变化敏锐 ,准确度高 ,铜和在一定的比例范围内... 研究了PAN - 6S和次甲基蓝混合指示剂配合滴定连续测定和铜的行为。在pH值 5 .4的六次甲基四胺—HCl介质中 ,以PAN - 6S和次甲基蓝为混合指示剂 ,EDTA为滴定剂连续滴定和铜 ,滴定终点变化敏锐 ,准确度高 ,铜和在一定的比例范围内相互无干扰。方法可用于合金和废水的测定 ,结果满意。 展开更多
关键词 pan-6S 次甲基蓝 配合滴定 混合指示剂 连续测定 应用
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PAN-S螯合树脂对金属铜离子的吸附研究 被引量:1
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作者 周秋华 王京平 《淮阴师范学院学报(自然科学版)》 CAS 2003年第4期306-309,共4页
研究了制取具有PAN S功能团的PAN S浸渍树脂对铜离子的吸附性能.铜离子吸附的最佳pH为5.4~9.0,达到最大吸附容量仅需30min,平衡时吸附容量是100mg g干树脂.用0.1mol L的HCl解脱,洗脱率达100%.建立了PAN S树脂富集 分离铜离子的光度分析... 研究了制取具有PAN S功能团的PAN S浸渍树脂对铜离子的吸附性能.铜离子吸附的最佳pH为5.4~9.0,达到最大吸附容量仅需30min,平衡时吸附容量是100mg g干树脂.用0.1mol L的HCl解脱,洗脱率达100%.建立了PAN S树脂富集 分离铜离子的光度分析法,测定结果满意. 展开更多
关键词 pan-S螯合树脂 微量分析
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一种具有PAN-S功能团的新螯合形成树脂 被引量:2
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作者 周志瑞 梁仲文 《高等学校化学学报》 SCIE EI CAS 1987年第2期122-124,共3页
我们直接磺化PAN得到1-(2-吡啶偶氮)-2-萘酚-磺酸(PAN-S),该法具有制备简单,易得到纯品等特点。本文研究了PAN-S与阴离子树脂交换转化成具有PAN-S基团的新螯合形成树脂(简称PAN-S树脂)。用原子吸收法研究了PAN-S树脂的一些特性。
关键词 螯合形成树脂 阴离子树脂 原子吸收法 功能团 pan-S 1-(2-吡啶偶氮)-2-萘酚
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PAN-S负载纤维富集-ICP-MS法测定畜禽饮用水中痕量铬
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作者 杨姝丽 余焘 +3 位作者 龚琦 童桂香 韦信贤 黎小正 《贵州农业科学》 CAS 北大核心 2014年第11期187-191,共5页
为提高畜禽饮用水中痕量铬的测定灵敏度及降低检出限,采用螯合剂1-(2-吡啶偶氮)-2-萘酚-6-磺酸(PAN-S)处理聚丙烯基强碱性阴离子交换纤维,制得PAN-S负载纤维;用PAN-S负载纤维富集畜禽饮用水中痕量铬,然后用电感耦合等离子体质谱(IC... 为提高畜禽饮用水中痕量铬的测定灵敏度及降低检出限,采用螯合剂1-(2-吡啶偶氮)-2-萘酚-6-磺酸(PAN-S)处理聚丙烯基强碱性阴离子交换纤维,制得PAN-S负载纤维;用PAN-S负载纤维富集畜禽饮用水中痕量铬,然后用电感耦合等离子体质谱(ICP-MS)法测定,建立PAN-S负载纤维富集—ICPMS法测定畜禽饮用水中痕量铬的方法。结果表明:当待富集液体积小于1 000 mL、pH 6、上柱流速小于15mL/min时,铬可被有效富集,且富集不受K^+、Na^+、Ca^2+、Mg^2+等共存离子的干扰;用0.2mol/L硝酸10mL能完全洗脱,洗脱液能满足ICP-MS法测定的要求;该方法的回收率为90.0%~96.0%,相对标准偏差(RSD)在1.0%~2.2%,检出限为0.02μg/L;应用优化的富集测定方法和常规的二苯碳酰二肼分光光度法同时对30份畜禽饮用水样品进行痕量铬的检测,两种方法的测定结果基本一致,说明优化的富集测定方法可应用于畜禽饮用水中痕量铬的检测。 展开更多
关键词 pan-S 离子交换纤维 ICP-MS 畜禽 饮用水
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PAN-6S作络合滴定指示剂连续测定铜和镍的研究 被引量:4
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作者 许玉生 《沈阳化工学院学报》 2004年第4期309-312,共4页
 就PAN 6S试剂作络合滴定指示剂连续测定铜和镍进行研究.在pH为2.3的氨基乙酸 盐酸溶液中,以PAN 6S作指示剂,以EDTA为滴定剂连续滴定测定镍和铜,其终点颜色变化敏锐,准确度高,铜、镍比例在1∶20~20∶1范围之间相互无影响.方法用于合...  就PAN 6S试剂作络合滴定指示剂连续测定铜和镍进行研究.在pH为2.3的氨基乙酸 盐酸溶液中,以PAN 6S作指示剂,以EDTA为滴定剂连续滴定测定镍和铜,其终点颜色变化敏锐,准确度高,铜、镍比例在1∶20~20∶1范围之间相互无影响.方法用于合金中铜、镍的连续测定,结果满意. 展开更多
关键词 pan-6S 络合滴定 连续滴定
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CNKSR2 interactome analysis indicates its association with the centrosome/microtubule system
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作者 Lin Yin Yalan Xu +9 位作者 Jie Mu Yu Leng Lei Ma Yu Zheng Ruizhi Li Yin Wang Peifeng Li Hai Zhu Dong Wang Jing Li 《Neural Regeneration Research》 SCIE CAS 2025年第8期2420-2432,共13页
The protein connector enhancer of kinase suppressor of Ras 2(CNKSR2),present in both the postsynaptic density and cytoplasm of neurons,is a scaffolding protein with several protein-binding domains.Variants of the CNKS... The protein connector enhancer of kinase suppressor of Ras 2(CNKSR2),present in both the postsynaptic density and cytoplasm of neurons,is a scaffolding protein with several protein-binding domains.Variants of the CNKSR2 gene have been implicated in neurodevelopmental disorders,particularly intellectual disability,although the precise mechanism involved has not yet been fully understood.Research has demonstrated that CNKSR2 plays a role in facilitating the localization of postsynaptic density protein complexes to the membrane,thereby influencing synaptic signaling and the morphogenesis of dendritic spines.However,the function of CNKSR2 in the cytoplasm remains to be elucidated.In this study,we used immunoprecipitation and high-resolution liquid chromatography-mass spectrometry to identify the interactors of CNKSR2.Through a combination of bioinformatic analysis and cytological experiments,we found that the CNKSR2 interactors were significantly enriched in the proteome of the centrosome.We also showed that CNKSR2 interacted with the microtubule protein DYNC1H1 and with the centrosome marker CEP290.Subsequent colocalization analysis confirmed the centrosomal localization of CNKSR2.When we downregulated CNKSR2 expression in mouse neuroblastoma cells(Neuro 2A),we observed significant changes in the expression of numerous centrosomal genes.This manipulation also affected centrosome-related functions,including cell size and shape,cell proliferation,and motility.Furthermore,we found that CNKSR2 interactors were highly enriched in de novo variants associated with intellectual disability and autism spectrum disorder.Our findings establish a connection between CNKSR2 and the centrosome,and offer new insights into the underlying mechanisms of neurodevelopmental disorders. 展开更多
关键词 autism spectrum disorder CENTROSOME CNKSR2 intellectual disability INTERACTOME mass spectrometry MICROTUBULE neurodevelopmental disease protein complexes protein-protein interactions
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水溶性PAN-6S的纯化及其Cd(Ⅱ)的研究 被引量:1
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作者 王京平 《环境与开发》 2000年第4期40-41,共2页
报告了 1 - (2 -吡啶偶氮 ) - 1 -萘酚 - 6 -磺酸的纯化方法 ,使用此方法可获得纯度大于 99.73 %的产品 ,并研究了PAN - 6S与Cd(Ⅱ )显色反应的条件 ,确定在pH =8.0~ 9.0形成橙红色化合物 ,最大吸收波长λmax=51 8nm ,摩尔吸光系数ε =... 报告了 1 - (2 -吡啶偶氮 ) - 1 -萘酚 - 6 -磺酸的纯化方法 ,使用此方法可获得纯度大于 99.73 %的产品 ,并研究了PAN - 6S与Cd(Ⅱ )显色反应的条件 ,确定在pH =8.0~ 9.0形成橙红色化合物 ,最大吸收波长λmax=51 8nm ,摩尔吸光系数ε =6 .2× 1 0 4L·mol- 1 ·cm- 1 ,镉量在 0~ 30 μg/2 5mL范围内符合比耳定律 ,方法用于废水和头发中镉的测定 ,结果满意 . 展开更多
关键词 pan-6S 纯化 光度法 水质测定 头发 镉离子
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