Determination method of carbomer content in gel containing carbomer
The invention relates to a determination method of carbomer content in gel containing carbomer. The determination method is characterized by comprising the following steps: adding a certain amount of an alkaline solution to enable a carboxylic acid group of the carbomer in the gel to exist at an ion...
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| creator | LIU CHENG WANG NAN WANG KUI GUO JIANQIONG LI KEJIANG GUO PEILIN ZHU GUOHUA |
| description | The invention relates to a determination method of carbomer content in gel containing carbomer. The determination method is characterized by comprising the following steps: adding a certain amount of an alkaline solution to enable a carboxylic acid group of the carbomer in the gel to exist at an ion state; then adding an excessive amount of a metal salt solution and sufficiently mixing metal salt and the carboxylic acid group in the carbomer to generate a complex; after removing the complex, titrating unbound metal salt by utilizing an EDTA (Ethylene Diamine Tetraacetic Acid) titrating solution, so as to calculate the content of the carbomer in a sample. The method provided by the invention is applicable to detection of the carbomer content in the gel which takes the carbomer as a gel matrix or a main component; the method is simple and accurate and has strong specificity.
本发明涉及种含有卡波姆的凝胶剂中卡波姆含量的检测方法，其特征在于，加入定量的碱溶液，使凝胶中卡波姆的羧酸基以离子状态存在，然后加入过量的金属盐溶液，使金属盐与卡波姆中的羧酸基充分结合，生成络合物，除去络合物后，再用EDTA滴定液滴定未结合的金属盐，从而计算得到样品中卡波姆的含 |
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本发明涉及种含有卡波姆的凝胶剂中卡波姆含量的检测方法，其特征在于，加入定量的碱溶液，使凝胶中卡波姆的羧酸基以离子状态存在，然后加入过量的金属盐溶液，使金属盐与卡波姆中的羧酸基充分结合，生成络合物，除去络合物后，再用EDTA滴定液滴定未结合的金属盐，从而计算得到样品中卡波姆的含</description><language>chi ; eng</language><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171107&DB=EPODOC&CC=CN&NR=107328766A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171107&DB=EPODOC&CC=CN&NR=107328766A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIU CHENG</creatorcontrib><creatorcontrib>WANG NAN</creatorcontrib><creatorcontrib>WANG KUI</creatorcontrib><creatorcontrib>GUO JIANQIONG</creatorcontrib><creatorcontrib>LI KEJIANG</creatorcontrib><creatorcontrib>GUO PEILIN</creatorcontrib><creatorcontrib>ZHU GUOHUA</creatorcontrib><title>Determination method of carbomer content in gel containing carbomer</title><description>The invention relates to a determination method of carbomer content in gel containing carbomer. The determination method is characterized by comprising the following steps: adding a certain amount of an alkaline solution to enable a carboxylic acid group of the carbomer in the gel to exist at an ion state; then adding an excessive amount of a metal salt solution and sufficiently mixing metal salt and the carboxylic acid group in the carbomer to generate a complex; after removing the complex, titrating unbound metal salt by utilizing an EDTA (Ethylene Diamine Tetraacetic Acid) titrating solution, so as to calculate the content of the carbomer in a sample. The method provided by the invention is applicable to detection of the carbomer content in the gel which takes the carbomer as a gel matrix or a main component; the method is simple and accurate and has strong specificity.
本发明涉及种含有卡波姆的凝胶剂中卡波姆含量的检测方法，其特征在于，加入定量的碱溶液，使凝胶中卡波姆的羧酸基以离子状态存在，然后加入过量的金属盐溶液，使金属盐与卡波姆中的羧酸基充分结合，生成络合物，除去络合物后，再用EDTA滴定液滴定未结合的金属盐，从而计算得到样品中卡波姆的含</description><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHB2SS1JLcrNzEssyczPU8hNLcnIT1HIT1NITixKys9NLVJIzs8rSc0rUcjMU0hPzQFzEzPzMvPS4Up4GFjTEnOKU3mhNDeDoptriLOHbmpBfnxqcUFicmpeakm8s5-hgbmxkYW5mZmjMTFqAJV-Mq0</recordid><startdate>20171107</startdate><enddate>20171107</enddate><creator>LIU CHENG</creator><creator>WANG NAN</creator><creator>WANG KUI</creator><creator>GUO JIANQIONG</creator><creator>LI KEJIANG</creator><creator>GUO PEILIN</creator><creator>ZHU GUOHUA</creator><scope>EVB</scope></search><sort><creationdate>20171107</creationdate><title>Determination method of carbomer content in gel containing carbomer</title><author>LIU CHENG ; WANG NAN ; WANG KUI ; GUO JIANQIONG ; LI KEJIANG ; GUO PEILIN ; ZHU GUOHUA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN107328766A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2017</creationdate><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LIU CHENG</creatorcontrib><creatorcontrib>WANG NAN</creatorcontrib><creatorcontrib>WANG KUI</creatorcontrib><creatorcontrib>GUO JIANQIONG</creatorcontrib><creatorcontrib>LI KEJIANG</creatorcontrib><creatorcontrib>GUO PEILIN</creatorcontrib><creatorcontrib>ZHU GUOHUA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIU CHENG</au><au>WANG NAN</au><au>WANG KUI</au><au>GUO JIANQIONG</au><au>LI KEJIANG</au><au>GUO PEILIN</au><au>ZHU GUOHUA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Determination method of carbomer content in gel containing carbomer</title><date>2017-11-07</date><risdate>2017</risdate><abstract>The invention relates to a determination method of carbomer content in gel containing carbomer. The determination method is characterized by comprising the following steps: adding a certain amount of an alkaline solution to enable a carboxylic acid group of the carbomer in the gel to exist at an ion state; then adding an excessive amount of a metal salt solution and sufficiently mixing metal salt and the carboxylic acid group in the carbomer to generate a complex; after removing the complex, titrating unbound metal salt by utilizing an EDTA (Ethylene Diamine Tetraacetic Acid) titrating solution, so as to calculate the content of the carbomer in a sample. The method provided by the invention is applicable to detection of the carbomer content in the gel which takes the carbomer as a gel matrix or a main component; the method is simple and accurate and has strong specificity.
本发明涉及种含有卡波姆的凝胶剂中卡波姆含量的检测方法，其特征在于，加入定量的碱溶液，使凝胶中卡波姆的羧酸基以离子状态存在，然后加入过量的金属盐溶液，使金属盐与卡波姆中的羧酸基充分结合，生成络合物，除去络合物后，再用EDTA滴定液滴定未结合的金属盐，从而计算得到样品中卡波姆的含</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Determination method of carbomer content in gel containing carbomer |
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