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href='/content/182.html' title='辦公場(chǎng)所需要做甲醛治理嗎？' alt='辦公場(chǎng)所需要做甲醛治理嗎？'>辦公場(chǎng)所需要做甲醛治理嗎？</a></li> </ul> </div> </div>  <div id="kscaugcqas42" class="Article_content"> <div id="kscaugcqas42" class="main_top"> <div id="kscaugcqas42" class="main_tops"> 您所在的位置：<a href="/">首頁(yè)</a> > <a href="/article.html">信息動(dòng)態(tài)</a> > 南川除甲醛 </div> </div> <div style="clear: both;"></div> <div id="kscaugcqas42" class="Article_text">甲醛的檢測(cè)方法有哪些？</div> <div id="kscaugcqas42" class="info"> <span>來(lái)源：<a href='http://www.shuangfengwood.com' target='_blank'>www.shuangfengwood.com</a> 發(fā)布時(shí)間：2023/4/14 15:36:41</span> </div> <div id="kscaugcqas42" class="detail"> <span style="font-size:14px;font-family:Microsoft YaHei;"> 甲醛的檢測(cè)方法有哪些？</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 國(guó)內(nèi)外對(duì)室內(nèi)、紡織品和食品中甲醛的檢測(cè)方法主要有分光光度法、電化學(xué)檢測(cè)法、氣相色譜法、液相色譜法和傳感器法。</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 分光光度法</span><br /> <p> <span style="font-size:14px;font-family:Microsoft YaHei;"> 分光光度法是一種基于不同分子結(jié)構(gòu)的物質(zhì)對(duì)電磁輻射的選擇性吸收的定性定量分析方法，是檢測(cè)室內(nèi)、紡織品和食品中甲醛Z常規(guī)的方法。有乙酰丙酮法、酚試劑法、AHMT法、品紅亞硫酸法、變色酸法、間苯三酚法、催化分光光度法等。每種檢測(cè)方法側(cè)重于不同的應(yīng)用領(lǐng)域，有各自的優(yōu)勢(shì)和一定的局限性。</span> </p> <p align="center"> <span style="font-size:14px;font-family:Microsoft YaHei;"><img src="http://img01.fuhai360.com/ncdchb/202002/202002041622171043.jpg" title="甲醛檢測(cè)治理公司" alt="甲醛檢測(cè)治理公司" /><br /> </span> </p> <span style="font-size:14px;font-family:Microsoft YaHei;"> 電化過(guò)程</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 電化學(xué)分析是根據(jù)化學(xué)反應(yīng)中產(chǎn)生的電流(伏安法)、電量(庫(kù)侖法)和電勢(shì)(電位法)的變化來(lái)判斷反應(yīng)體系中被分析物的濃度并進(jìn)行定量分析的方法。</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 層析法</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 甲醛在紡織工業(yè)中的應(yīng)用</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 色譜法分離效率高，不易受樣品基質(zhì)和試劑顏色的干擾，對(duì)復(fù)雜樣品的檢測(cè)靈敏準(zhǔn)確。可直接用于室內(nèi)、紡織品和食品中甲醛的分析檢測(cè)。樣品中的甲醛也可以衍生化，然后測(cè)定。客廳、紡織品、食品中的樣品成分一般比較復(fù)雜，干擾成分多，甲醛含量低。常規(guī)檢測(cè)方法在檢測(cè)前需要花費(fèi)大量的時(shí)間和精力進(jìn)行分離、濃縮等預(yù)處理。色譜法靈敏度高，定量準(zhǔn)確，抗干擾性強(qiáng)，可直接用于檢測(cè)房間、紡織品和食品中的甲醛。而色譜法對(duì)設(shè)備要求高，衍生時(shí)間長(zhǎng)，提取、操作過(guò)程等步驟復(fù)雜，不適合一般實(shí)驗(yàn)室和家庭現(xiàn)場(chǎng)快速檢測(cè)，難以滿足市場(chǎng)需求。</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 傳感器方法</span><br /> <span style="font-size:14px;font-family:Microsoft YaHei;"> 用于檢測(cè)甲醛的傳感器包括電化學(xué)傳感器、光學(xué)傳感器和光生化傳感器。電化學(xué)傳感器結(jié)構(gòu)簡(jiǎn)單，成本低廉，其中產(chǎn)品性能穩(wěn)定，測(cè)量范圍和分辨率基本能滿足室內(nèi)環(huán)境檢測(cè)的要求。但缺點(diǎn)是干擾物質(zhì)多，電解液因與被測(cè)甲醛氣體發(fā)生不可逆的化學(xué)反應(yīng)而被消耗，因此其工作壽命一般較短。光學(xué)傳感器價(jià)格昂貴，體積龐大，不適合在線實(shí)時(shí)分析，限制了其廣泛應(yīng)用。雖然光生化傳感器提高了選擇性，但由于酶的活性等因素，傳感器不穩(wěn)定，缺乏實(shí)用性，而且一般甲醛氣體傳感器價(jià)格過(guò)高，難以推廣。</span> </div> <div style="clear: 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