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  • 2025

    5-15

    熱裂解氣相色譜儀是將熱裂解技術(shù)與氣相色譜技術(shù)相結(jié)合的一種分析儀器,它能夠?qū)Ω鞣N復(fù)雜樣品進行熱裂解,將大分子物質(zhì)轉(zhuǎn)化為小分子揮發(fā)性產(chǎn)物,再通過氣相色譜對這些裂解產(chǎn)物進行分離和檢測,從而獲取樣品的化學組成和結(jié)構(gòu)信息。熱裂解氣相色譜儀的工作過程主要分為熱裂解和氣相色譜分析兩個階段。熱裂解階段:樣品被放置在特定的裂解器中,在高溫、缺氧或惰性氣體保護的環(huán)境下迅速加熱。高溫使得樣品中的化學鍵發(fā)生斷裂,大分子物質(zhì)分解為小分子的揮發(fā)性產(chǎn)物。裂解溫度、裂解時間、裂解氣氛等條件會影響裂解產(chǎn)物的種...

  • 2025

    4-23

    RoHS2.0氣質(zhì)聯(lián)用儀能夠檢測到低濃度的有害物質(zhì),對于RoHS2.0指令中限制的物質(zhì),其檢測限通常可以達到ppm甚至ppb級別;可以清晰地分辨出相鄰質(zhì)量數(shù)的離子峰,提高了對復(fù)雜樣品的分析能力。例如,對于一些分子量相近的有害物質(zhì),高分辨率的質(zhì)譜儀可以準確地將其區(qū)分開來。相比傳統(tǒng)的化學分析方法,可以在較短的時間內(nèi)完成對多個樣品的分析,提高了檢測效率。一般來說,一個樣品的分析時間可以在幾十分鐘到幾個小時之間;通過對質(zhì)譜圖的解析和比對標準質(zhì)譜庫,可以準確地確定物質(zhì)的種類和含量。同時...

  • 2025

    4-17

    在現(xiàn)代分析化學領(lǐng)域,熱裂解脫附儀作為樣品前處理的核心設(shè)備,正發(fā)揮著不可替代的作用。這款儀器通過熱裂解與脫附技術(shù)的融合,將固體或高沸點液體樣品轉(zhuǎn)化為揮發(fā)性化合物,為后續(xù)的氣相色譜-質(zhì)譜聯(lián)用(GC-MS)分析提供了高效、精準的解決方案。其應(yīng)用范圍覆蓋高分子材料、石油化工、環(huán)境科學等多個領(lǐng)域,成為研究材料熱降解機理、成分分析及質(zhì)量控制的重要工具。技術(shù)原理與核心優(yōu)勢熱裂解脫附儀的核心技術(shù)基于高溫裂解與載氣傳輸?shù)膮f(xié)同作用。裂解爐內(nèi)部溫度可高達數(shù)百至數(shù)千攝氏度,樣品在此環(huán)境中迅速分解為小...

  • 2025

    4-8

    鄰苯檢測儀的原理技術(shù)基于色譜分離與檢測技術(shù),通過熱裂解、氣相色譜分離及高靈敏度檢測器實現(xiàn)鄰苯二甲酸酯(PAEs)的快速篩查與定量分析。樣品在高溫(如350℃)下裂解為氣態(tài)組分,通過載氣(如氮氣)輸送至色譜柱。此過程無需化學前處理,直接將固體或液體樣品轉(zhuǎn)化為可分析氣體,簡化操作流程;裂解產(chǎn)物在色譜柱中依據(jù)沸點、極性等特性分離為單一組分。選擇鄰苯檢測儀時,需綜合考慮檢測需求、技術(shù)性能、操作便捷性等因素,以確保儀器滿足實際檢測要求。一、明確檢測需求檢測項目:根據(jù)產(chǎn)品類型(如電子電氣...

  • 2025

    4-1

    RoHS2.0儀器,即RoHS2.0檢測儀,通過采集樣品的特征光譜或氣相色譜圖,利用算法和數(shù)據(jù)庫對樣品中的有害物質(zhì)進行定性和定量分析。儀器內(nèi)部通常配備有高精度的光譜儀、氣相色譜儀和質(zhì)譜儀等核心部件,以及計算機控制系統(tǒng)和數(shù)據(jù)處理軟件。是根據(jù)歐盟RoHS指令(即《關(guān)于限制在電子電氣設(shè)備中使用某些有害成分的指令》2.0版本)要求而設(shè)計的,專門用于檢測電子電氣產(chǎn)品中的有害物質(zhì)含量,以確保產(chǎn)品符合環(huán)保標準。這些有害物質(zhì)主要包括鉛(Pb)、汞(Hg)、鎘(Cd)、六價鉻(Cr(VI))、...

  • 2025

    3-25

    RoHS2.0檢測設(shè)備主要用于檢測和分析電子電氣產(chǎn)品中的有害物質(zhì)含量,通過準確測量和分析產(chǎn)品中的有害物質(zhì)含量,有助于企業(yè)提升產(chǎn)品質(zhì)量,增強市場競爭力,其應(yīng)用能夠確保產(chǎn)品中不含對人體有害的重金屬和有機化合物等有害物質(zhì),從而保護消費者的安全。RoHS2.0檢測設(shè)備的特點:1.高精度:采用光譜分析技術(shù),如X射線熒光光譜(XRF)、氣相色譜-質(zhì)譜聯(lián)用(GC-MS)和液相色譜-質(zhì)譜聯(lián)用(LC-MS)等,具有高精度和高靈敏度,能夠準確測量樣品中有害物質(zhì)的含量。2.快速高效:這些設(shè)備具有快...

  • 2025

    3-18

    RoHS2.0測試儀(即限制使用某些有害物質(zhì)指令2.0測試儀)是一種用于檢測和分析電子產(chǎn)品、電子元器件及其材料中是否含有超過規(guī)定的有害物質(zhì)的儀器。RoHS是“RestrictionofHazardousSubstances”的縮寫,意為“限制有害物質(zhì)”。RoHS2.0指令是歐盟在2003年推出的一項重要環(huán)境保護法規(guī),旨在減少電子電氣產(chǎn)品中對環(huán)境和人體有害的物質(zhì)。RoHS2.0的主要要求:RoHS2.0指令主要限制電子產(chǎn)品中以下有害物質(zhì)的使用:鉛(Pb)汞(Hg)鎘(Cd)六價...

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新典儀器(杭州)有限公司 公司地址:杭州市濱江區(qū)長河街道聚才路105號1號樓301室   技術(shù)支持:化工儀器網(wǎng)
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