| 浊点萃取-火焰原子吸收光谱法测定乙醛触媒微量钯含量 |
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| 引用本文： | 宋唯,屈海峰,陈寿华,王绍东.浊点萃取-火焰原子吸收光谱法测定乙醛触媒微量钯含量[J].化工科技,2012,20(4):48-51. |
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| 作者姓名： | 宋唯 屈海峰 陈寿华 王绍东 |
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| 作者单位： | 中国石油吉林石化公司电石厂,吉林 吉林,132022 |
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| 摘 要： | 建立了以1-（2-吡啶偶氮）-2-萘（PAN）为络合剂，以非离子表面活性剂TritonX-100为萃取剂的浊点萃取分离富集-火焰原子吸收光谱法测定痕量钯的新方法。研究了溶液的酸度、络合剂和表面活性剂浓度、平衡温度和时间、离子强度等条件对浊点萃取效果的影响。该方法对钯的检出限为35．3ng／mL，相对标准偏差（RSD）为3．1％（n=8），回收率97．6％0～106．7％。可用于乙醛催化剂中微量Pd（Ⅱ）的测定。
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| 关 键 词： | 浊点萃取 火焰原子吸收光谱法 Triton X-100 钯 |
Determination of micro Pd(Ⅱ) in catalyst by cloud point extraction separation-flame atomic absorption spectrometry |
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| SONG Wei
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QU Hai-feng
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CHEN Shou-hua
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WANG Shao-dong.Determination of micro Pd(Ⅱ) in catalyst by cloud point extraction separation-flame atomic absorption spectrometry[J].Science & Technology In Chemical Industry,2012,20(4):48-51. |
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| Authors: | SONG Wei QU Hai-feng CHEN Shou-hua WANG Shao-dong |
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| Affiliation: | (The Carbide Factory of Jilin Petrochemical Co.Ltd.,PetroChina,Jilin 132022,China) |
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| Abstract: | Deter mination of micro Pd(Ⅱ)in aldehyde catalyst was established by cloud point extraction separation-flame atomic absorption spectrometry using 1-(2-pyridylazo)-2-naphthol(PAN) complexing agent(Ⅰ),non-ionic surfactant Triton X-100 as extracting agent(Ⅲ).The influences of acidity of solution,concentration of Ⅰ and Ⅲ,temperature and time of equilibrium,and ionic strength on the effect of cloud point extraction separation were investigated.The detection limit of new determinating method is 35.3 ng/mL,the RSD is 3.1%(n=8),the recovery is 97.6%~106.7%.New methd can be used in aldehyde production. |
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| Keywords: | Cloud point extraction Flame atomic absorption spectrometry Triton X-100 Palladium(Pd) |
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