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11-26
氟(fu)(fu)(fu)離(li)(li)(li)子(zi)(zi)(zi)濃(nong)度(du)計(ji)是一種用(yong)(yong)于(yu)檢測(ce)水(shui)中(zhong)氟(fu)(fu)(fu)離(li)(li)(li)子(zi)(zi)(zi)含量(liang)的(de)儀器(qi),主要應(ying)用(yong)(yong)于(yu)環境(jing)監測(ce)、工業生(sheng)(sheng)產、飲用(yong)(yong)水(shui)安全等領域。通(tong)常采(cai)用(yong)(yong)離(li)(li)(li)子(zi)(zi)(zi)選擇電(dian)(dian)(dian)極(ISE)技術來進(jin)行測(ce)量(liang)。其(qi)原理是基于(yu)離(li)(li)(li)子(zi)(zi)(zi)在(zai)溶液中(zhong)的(de)化(hua)學活性與其(qi)濃(nong)度(du)成正比的(de)特性。當置于(yu)待(dai)測(ce)樣(yang)品中(zhong)時,氟(fu)(fu)(fu)離(li)(li)(li)子(zi)(zi)(zi)選擇電(dian)(dian)(dian)極上的(de)特殊膜材料會(hui)與待(dai)測(ce)樣(yang)品中(zhong)的(de)氟(fu)(fu)(fu)離(li)(li)(li)子(zi)(zi)(zi)發(fa)生(sheng)(sheng)特定的(de)化(hua)學反應(ying),產生(sheng)(sheng)電(dian)(dian)(dian)勢變化(hua)。通(tong)過測(ce)量(liang)這種電(dian)(dian)(dian)勢變化(hua),就可以(yi)準確地確定水(shui)樣(yang)中(zhong)氟(fu)(fu)(fu)離(li)(li)(li)子(zi)(zi)(zi)的(de)濃(nong)度(du)。氟(fu)(fu)(fu)離(li)(li)(li)子(zi)(zi)(zi)濃(nong)度(du)計(ji)的(de)應(ying)用(yong)(yong)領域:1.環境(jing)監測(ce):用(yong)(yong)于(yu)監測(ce)環境(jing)中(zhong)水(shui)體、土壤(rang)等介質中(zhong)的(de)氟(fu)(fu)(fu)離(li)(li)(li)子(zi)(zi)(zi)含量(liang),幫助評估環境(jing)質量(liang)和污染程度(du),保(bao)護自然...
10-25
DKK電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)滴定(ding)(ding)裝置是一種常用的(de)(de)(de)(de)分析儀器,主(zhu)要用于化(hua)學分析和質(zhi)量(liang)(liang)控制等領域。它通過(guo)測量(liang)(liang)溶(rong)液(ye)中的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)變化(hua)來(lai)確(que)定(ding)(ding)樣品(pin)中的(de)(de)(de)(de)化(hua)學物(wu)質(zhi)含量(liang)(liang),具有準(zhun)確(que)、快速(su)、靈敏度高(gao)的(de)(de)(de)(de)特(te)點。基(ji)于電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)滴定(ding)(ding)的(de)(de)(de)(de)原理,即根據(ju)滴定(ding)(ding)過(guo)程(cheng)中溶(rong)液(ye)中的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)變化(hua)來(lai)確(que)定(ding)(ding)溶(rong)液(ye)中的(de)(de)(de)(de)化(hua)學物(wu)質(zhi)含量(liang)(liang)。當添(tian)加滴定(ding)(ding)試劑(ji)時,試劑(ji)與(yu)待(dai)測溶(rong)液(ye)發生化(hua)學反應(ying)(ying),導致電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)的(de)(de)(de)(de)變化(hua)。DKK電(dian)(dian)(dian)(dian)(dian)位(wei)(wei)滴定(ding)(ding)裝置的(de)(de)(de)(de)結構:1.電(dian)(dian)(dian)(dian)(dian)解池:電(dian)(dian)(dian)(dian)(dian)解池是進行滴定(ding)(ding)反應(ying)(ying)的(de)(de)(de)(de)容器,通常為玻(bo)璃容器或塑料(liao)容器。它具有良(liang)好的(de)(de)(de)(de)耐腐(fu)蝕性和密封(feng)性能,以確(que)保滴定(ding)(ding)過(guo)程(cheng)的(de)(de)(de)(de)準(zhun)確(que)性。2.電(dian)(dian)(dian)(dian)(dian)極系統:電(dian)(dian)(dian)(dian)(dian)極系統包(bao)括(kuo)指示(shi)...
9-24
哈希(xi)在線氨(an)氮(dan)試(shi)(shi)劑(ji)是(shi)一種被廣泛(fan)應用于(yu)(yu)水(shui)質(zhi)監(jian)測(ce)(ce)和環(huan)(huan)境保(bao)護領域的(de)化(hua)學試(shi)(shi)劑(ji)。它主(zhu)要(yao)用于(yu)(yu)檢測(ce)(ce)水(shui)樣(yang)中的(de)氨(an)氮(dan)含量(liang),幫(bang)助評估(gu)水(shui)源的(de)質(zhi)量(liang)和環(huan)(huan)境中的(de)氨(an)氮(dan)污染(ran)程度。檢測(ce)(ce)原(yuan)理基(ji)于(yu)(yu)凱夫拉奇反(fan)應(Keuffel-Averyreaction)和指示劑(ji)法。這個方法是(shi)通(tong)過將水(shui)樣(yang)與試(shi)(shi)劑(ji)中的(de)堿性氨(an)氮(dan)轉化(hua)為氨(an)水(shui),并與試(shi)(shi)劑(ji)中的(de)染(ran)料(liao)產生可見的(de)顏色反(fan)應。哈希(xi)在線氨(an)氮(dan)試(shi)(shi)劑(ji)的(de)具體(ti)步驟如下(xia):1.水(shui)樣(yang)處(chu)(chu)(chu)理:首先,將需要(yao)測(ce)(ce)定氨(an)氮(dan)的(de)水(shui)樣(yang)經(jing)(jing)過預處(chu)(chu)(chu)理。這包(bao)括濾除(chu)懸浮顆粒、除(chu)去有(you)機物(wu)質(zhi)等,以確保(bao)準確測(ce)(ce)定氨(an)氮(dan)的(de)含量(liang)。2.試(shi)(shi)劑(ji)添(tian)加:向經(jing)(jing)過處(chu)(chu)(chu)理...
8-27
在(zai)線溶(rong)解(jie)氧(yang)(yang)分析儀是一種用于測(ce)量(liang)水(shui)(shui)體(ti)中溶(rong)解(jie)氧(yang)(yang)含量(liang)的(de)(de)儀器。它能夠實時監測(ce)水(shui)(shui)體(ti)中的(de)(de)溶(rong)解(jie)氧(yang)(yang)濃度(du),為(wei)環境保護、水(shui)(shui)質監測(ce)和工業生產(chan)等領域(yu)提供關(guan)鍵數據。在(zai)線溶(rong)解(jie)氧(yang)(yang)分析儀的(de)(de)原(yuan)理:1.傳感器:包(bao)含一個(ge)溶(rong)解(jie)氧(yang)(yang)傳感器,通(tong)常(chang)(chang)是由兩個(ge)電(dian)(dian)極組成(cheng)(cheng),即(ji)陽極和陰(yin)(yin)極。陽極通(tong)常(chang)(chang)由金屬材(cai)料(liao)制成(cheng)(cheng),而(er)陰(yin)(yin)極通(tong)常(chang)(chang)由銀/銀氯(lv)化物組成(cheng)(cheng)。2.氧(yang)(yang)還原(yuan)反(fan)應(ying):當(dang)溶(rong)解(jie)氧(yang)(yang)與(yu)陽極接觸(chu)時,氧(yang)(yang)氣會在(zai)陽極表面發生氧(yang)(yang)還原(yuan)反(fan)應(ying),產(chan)生電(dian)(dian)流。這(zhe)個(ge)電(dian)(dian)流與(yu)水(shui)(shui)中的(de)(de)溶(rong)解(jie)氧(yang)(yang)濃度(du)成(cheng)(cheng)正比。3.測(ce)量(liang)電(dian)(dian)路:測(ce)量(liang)電(dian)(dian)路將陽極和陰(yin)(yin)極之間的(de)(de)電(dian)(dian)流轉(zhuan)換為(wei)電(dian)(dian)壓信號,并通(tong)過放大、濾波和數...
7-25
DKK酸(suan)度(du)(du)(du)計是一(yi)種常見且重要的(de)(de)實驗室儀(yi)(yi)器(qi)(qi),用(yong)于(yu)測(ce)定(ding)液(ye)(ye)體樣品(pin)的(de)(de)酸(suan)度(du)(du)(du)。該設備通過(guo)電動滴(di)(di)定(ding)的(de)(de)方式,精確測(ce)量液(ye)(ye)體中酸(suan)性成分的(de)(de)含量,廣(guang)泛應(ying)用(yong)于(yu)食品(pin)、化工、制藥以及科(ke)學研究等(deng)領(ling)域(yu)。核心部分包括滴(di)(di)定(ding)裝(zhuang)置、電極(ji)、計量儀(yi)(yi)器(qi)(qi)和顯示(shi)屏等(deng)。滴(di)(di)定(ding)裝(zhuang)置通過(guo)精密(mi)的(de)(de)電動滴(di)(di)定(ding)技術,將標準酸(suan)性溶液(ye)(ye)滴(di)(di)加(jia)到待測(ce)樣品(pin)中,直至(zhi)液(ye)(ye)體的(de)(de)pH值達(da)到設定(ding)的(de)(de)終點。電極(ji)則(ze)用(yong)于(yu)測(ce)量液(ye)(ye)體中的(de)(de)氫(qing)離(li)子濃度(du)(du)(du),進(jin)而確定(ding)酸(suan)度(du)(du)(du)的(de)(de)大小。計量儀(yi)(yi)器(qi)(qi)則(ze)負責記錄和處理測(ce)量數據,并將結果(guo)顯示(shi)在顯示(shi)屏上(shang)。DKK酸(suan)度(du)(du)(du)計具(ju)有(you)多項優(you)點。首先,它(ta)具(ju)有(you)高精度(du)(du)(du)和重復性好(hao)的(de)(de)...
6-27
氫(qing)(qing)氧化(hua)鉀(jia)濃(nong)度(du)(du)(du)(du)計(ji)通常采用電(dian)(dian)(dian)導率(lv)法(fa)(fa)來測(ce)(ce)定溶(rong)(rong)液(ye)中的(de)離子濃(nong)度(du)(du)(du)(du)。電(dian)(dian)(dian)導率(lv)法(fa)(fa)是利用電(dian)(dian)(dian)離物質(zhi)(如電(dian)(dian)(dian)解質(zhi)溶(rong)(rong)液(ye))的(de)電(dian)(dian)(dian)導作(zuo)為(wei)測(ce)(ce)量對象的(de)一(yi)種(zhong)分(fen)析方法(fa)(fa)。當有(you)(you)電(dian)(dian)(dian)場作(zuo)用于(yu)電(dian)(dian)(dian)解質(zhi)溶(rong)(rong)液(ye)時,其中的(de)帶電(dian)(dian)(dian)粒子(如離子)會運動(dong)并(bing)產生電(dian)(dian)(dian)流,這個電(dian)(dian)(dian)流強度(du)(du)(du)(du)與電(dian)(dian)(dian)解質(zhi)的(de)離子濃(nong)度(du)(du)(du)(du)有(you)(you)關系。因此,可以通過測(ce)(ce)量電(dian)(dian)(dian)解質(zhi)溶(rong)(rong)液(ye)的(de)電(dian)(dian)(dian)導率(lv)來確定其中離子濃(nong)度(du)(du)(du)(du)的(de)大小,從而推算出氫(qing)(qing)氧化(hua)鉀(jia)溶(rong)(rong)液(ye)的(de)濃(nong)度(du)(du)(du)(du)。氫(qing)(qing)氧化(hua)鉀(jia)濃(nong)度(du)(du)(du)(du)計(ji)的(de)使用方法(fa)(fa):1、準備工作(zuo)首先(xian)需要將(jiang)濃(nong)度(du)(du)(du)(du)計(ji)取出來,并(bing)且檢查(cha)一(yi)下是否有(you)(you)損(sun)壞或者臟污等情況。同時,也要預先(xian)準備好待測(ce)(ce)樣品(即(ji)氫(qing)(qing)氧化(hua)鉀(jia)溶(rong)(rong)液(ye)),以及電(dian)(dian)(dian)...
4-26
在(zai)線溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)分(fen)(fen)(fen)析儀(yi)是一種能夠實時(shi)監(jian)測(ce)水(shui)(shui)(shui)體中(zhong)溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)含(han)(han)量的儀(yi)器(qi),其重(zhong)要性在(zai)于(yu)能夠及時(shi)掌握水(shui)(shui)(shui)體中(zhong)的溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)含(han)(han)量,為水(shui)(shui)(shui)質監(jian)測(ce)、環(huan)境保護和水(shui)(shui)(shui)產(chan)養(yang)殖等方面提(ti)供關鍵數據。采(cai)用膜法測(ce)定溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)濃(nong)度(du)。具體來(lai)說,它通過一個(ge)(ge)半透膜,把空(kong)氣(qi)或氧(yang)(yang)氣(qi)分(fen)(fen)(fen)離(li)到(dao)水(shui)(shui)(shui)中(zhong),然后在(zai)膜上測(ce)定氧(yang)(yang)氣(qi)分(fen)(fen)(fen)壓,進而(er)得到(dao)溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)濃(nong)度(du)。其中(zhong)有一個(ge)(ge)氧(yang)(yang)傳感器(qi),其主要是通過電(dian)化(hua)學反應來(lai)進行氧(yang)(yang)氣(qi)檢測(ce)。當溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)與(yu)膜上的陰離(li)子交換器(qi)反應時(shi),產(chan)生(sheng)的電(dian)流(liu)與(yu)氧(yang)(yang)氣(qi)濃(nong)度(du)相關。通過檢測(ce)反應電(dian)流(liu),就能得到(dao)水(shui)(shui)(shui)中(zhong)的溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)含(han)(han)量。在(zai)線溶(rong)(rong)(rong)(rong)解(jie)氧(yang)(yang)分(fen)(fen)(fen)析儀(yi)主要應用于(yu)以下場景:1.水(shui)(shui)(shui)處...
11-24
哈希活塞是汽車發動機汽缸體(ti)中(zhong)(zhong)作往復運動的(de)(de)機件。它的(de)(de)主(zhu)要作用(yong)是承受(shou)氣缸中(zhong)(zhong)的(de)(de)氣體(ti)壓力(li),并(bing)將此(ci)力(li)通(tong)過活塞銷傳給(gei)連桿(gan),以(yi)推動曲軸旋轉。哈希活塞的(de)(de)優點1、無需(xu)極化(hua):在(zai)測量(liang)溶(rong)解氧時,HQ30d配(pei)的(de)(de)LDO溶(rong)解氧探(tan)頭(tou)不(bu)需(xu)要極化(hua)時間。傳統溶(rong)解氧探(tan)頭(tou)在(zai)使(shi)用(yong)前(qian)通(tong)常有極化(hua)過程。2、無需(xu)校(xiao)準:HQ30d配(pei)的(de)(de)LDO溶(rong)解氧探(tan)頭(tou)在(zai)出(chu)廠前(qian)已經校(xiao)準,因(yin)此(ci)用(yong)戶在(zai)使(shi)用(yong)時無需(xu)校(xiao)準,可(ke)直(zhi)接測量(liang)溶(rong)解氧濃度(du)。而傳統的(de)(de)溶(rong)解氧儀在(zai)使(shi)用(yong)時,通(tong)常有校(xiao)準步驟(zou),校(xiao)準通(tong)過后,方(fang)可(ke)進行溶(rong)解氧的(de)(de)測定。3、維護量(liang)低:HQ30d配(pei)的(de)(de)LDO探(tan)頭(tou)為...
10-25
哈(ha)希總氮試(shi)(shi)劑(ji)主(zhu)要是經過電子(zi)式溫濕(shi)度(du)監測(ce)(ce)儀(yi)器的(de)(de)自動(dong)(dong)化(hua)不斷提高的(de)(de)代表(biao),并在(zai)原(yuan)先的(de)(de)基礎(chu)上進(jin)行(xing)設置(zhi)了標(biao)準接(jie)(jie)口(kou),能夠與控(kong)(kong)制計算機和除濕(shi)、降溫、通風等(deng)設備(bei)進(jin)行(xing)互聯,從而出現了一(yi)體化(hua)的(de)(de)溫濕(shi)度(du)自動(dong)(dong)測(ce)(ce)控(kong)(kong)系(xi)統,這一(yi)系(xi)列的(de)(de)運用比較的(de)(de)廣泛,一(yi)體化(hua)溫濕(shi)度(du)測(ce)(ce)控(kong)(kong)系(xi)統形(xing)式多種(zhong)多樣(yang)(yang),整體性能主(zhu)要取(qu)決于所選用的(de)(de)硬件設備(bei)。分(fen)析(xi)過程中只需將(jiang)(jiang)規定(ding)(ding)量的(de)(de)水(shui)(shui)樣(yang)(yang)注入(ru)試(shi)(shi)劑(ji)或(huo)將(jiang)(jiang)試(shi)(shi)劑(ji)溶(rong)解在(zai)規定(ding)(ding)量的(de)(de)水(shui)(shui)樣(yang)(yang)中,按程序操(cao)作后,將(jiang)(jiang)樣(yang)(yang)品瓶放入(ru)分(fen)光光度(du)計或(huo)比色計中(預存(cun)有標(biao)準曲(qu)線)直(zhi)接(jie)(jie)讀數便(bian)可得到的(de)(de)測(ce)(ce)試(shi)(shi)結果。將(jiang)(jiang)樣(yang)(yang)品信息(xi)輸入(ru)到控(kong)(kong)制單(dan)元中,自動(dong)(dong)進(jin)樣(yang)(yang)...
9-25
哈希硫酸閥當出(chu)現(xian)無硫酸,無消解(jie)液時(shi),如果不(bu)是硫酸用完,則故障為硫酸閥的(de)(de)墊片已(yi)經損壞,或者瓶蓋(gai)子蓋(gai)得太緊了導(dao)致負(fu)壓。需要(yao)先(xian)松(song)(song)動瓶蓋(gai),排除負(fu)壓的(de)(de)問(wen)題。更(geng)(geng)換時(shi)首先(xian)松(song)(song)掉(diao)電磁(ci)閥的(de)(de)電源連接線(xian),然后用專業星形起(qi)子卸下后面的(de)(de)兩(liang)顆螺(luo)絲(si),將黑色的(de)(de)電磁(ci)部分(fen)抽出(chu),再用起(qi)子卸下里(li)面的(de)(de)兩(liang)顆螺(luo)絲(si),把閥頭拿(na)下來,更(geng)(geng)換閥頭后,再復原即可。注意:在更(geng)(geng)換中(zhong),注意硫酸閥的(de)(de)閥體方向(xiang),一定要(yao)按(an)原方向(xiang)裝好(hao),還有螺(luo)絲(si)在上緊的(de)(de)時(shi)候(hou)要(yao)適中(zhong),切忌上的(de)(de)太緊,也不(bu)能上的(de)(de)太松(song)(song)。裝好(hao)后,要(yao)觀察片刻,直到功能測(ce)試后,硫酸長(chang)2分(fen)鐘內不(bu)回流為...