
2025-11-17 05:48:08
原生態水質采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)器的(de)(de)(de)(de)中(zhong)心設計邏輯圍(wei)繞“水體(ti)真實性(xing)(xing)保留”展開,其(qi)中(zhong)心要求是(shi)在采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)全(quan)過程(cheng)中(zhong)避免(mian)對(dui)水體(ti)原有(you)(you)物(wu)(wu)理特性(xing)(xing)、化學(xue)(xue)組(zu)分及生物(wu)(wu)群落造(zao)成擾動。采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)器的(de)(de)(de)(de)材(cai)質選擇是(shi)實現這(zhe)(zhe)一目標的(de)(de)(de)(de)基礎(chu),通(tong)常采(cai)(cai)(cai)(cai)用聚(ju)四氟(fu)乙烯(xi)、316L不銹鋼等惰性(xing)(xing)材(cai)料(liao),這(zhe)(zhe)些(xie)材(cai)料(liao)具有(you)(you)極低的(de)(de)(de)(de)化學(xue)(xue)活性(xing)(xing),可(ke)(ke)有(you)(you)效防(fang)止(zhi)與水體(ti)中(zhong)的(de)(de)(de)(de)重(zhong)金屬、有(you)(you)機(ji)物(wu)(wu)等組(zu)分發(fa)生反應,同時避免(mian)材(cai)質溶(rong)出物(wu)(wu)對(dui)樣(yang)(yang)(yang)(yang)(yang)(yang)品(pin)造(zao)成二次污染。在結(jie)構設計上,采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)器需配(pei)備緩(huan)流型(xing)(xing)進水口,通(tong)過流線型(xing)(xing)結(jie)構降(jiang)低水流速度(du),減少采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)過程(cheng)中(zhong)水體(ti)產生湍(tuan)流,從而避免(mian)底泥泛(fan)起(qi)對(dui)上層(ceng)水樣(yang)(yang)(yang)(yang)(yang)(yang)的(de)(de)(de)(de)干擾。此外,采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)器的(de)(de)(de)(de)容(rong)積標定需經過嚴格校準(zhun),確保每(mei)次采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)量(liang)的(de)(de)(de)(de)穩定性(xing)(xing),為后續水質檢測(ce)數據的(de)(de)(de)(de)可(ke)(ke)比性(xing)(xing)提供基礎(chu)保障,這(zhe)(zhe)種設計思路貫(guan)穿(chuan)于從實驗室(shi)小型(xing)(xing)采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)器到(dao)野外大型(xing)(xing)自動采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)設備的(de)(de)(de)(de)全(quan)系列產品(pin)中(zhong)。采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)器保溫(wen)層(ceng)多采(cai)(cai)(cai)(cai)用柔性(xing)(xing)材(cai)料(liao),可(ke)(ke)緊(jin)密包裹管路,在溫(wen)差大的(de)(de)(de)(de)環境中(zhong)維持水樣(yang)(yang)(yang)(yang)(yang)(yang)溫(wen)度(du)穩定。小型(xing)(xing)原生態水質采(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)器報價行情

原(yuan)生態水(shui)質(zhi)采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)器的(de)設(she)(she)備(bei)(bei)(bei)(bei)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)加(jia)密(mi)(mi)(mi)(mi)存儲(chu)(chu)設(she)(she)計是保障采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)**的(de)重要(yao)手段(duan),可防止(zhi)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)泄露或(huo)(huo)篡改。設(she)(she)備(bei)(bei)(bei)(bei)的(de)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)存儲(chu)(chu)模(mo)塊(kuai)(kuai)需(xu)采(cai)(cai)(cai)用加(jia)密(mi)(mi)(mi)(mi)芯片,對采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)過(guo)程(cheng)(cheng)中采(cai)(cai)(cai)集的(de)時(shi)(shi)(shi)間(jian)、點位、水(shui)質(zhi)參數(shu)(shu)(shu)(shu)(shu)(shu)等(deng)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)進(jin)行實(shi)時(shi)(shi)(shi)加(jia)密(mi)(mi)(mi)(mi)處理,加(jia)密(mi)(mi)(mi)(mi)算法可選(xuan)用對稱加(jia)密(mi)(mi)(mi)(mi)算法(如AES算法),通過(guo)預設(she)(she)密(mi)(mi)(mi)(mi)鑰對數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)進(jin)行加(jia)密(mi)(mi)(mi)(mi),只有(you)(you)持有(you)(you)對應密(mi)(mi)(mi)(mi)鑰的(de)授權設(she)(she)備(bei)(bei)(bei)(bei)或(huo)(huo)人員才能破譯讀取數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju),避(bi)免(mian)非授權人員獲取敏感監(jian)測(ce)(ce)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)。數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)存儲(chu)(chu)采(cai)(cai)(cai)用分區(qu)存儲(chu)(chu)方式,將采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)與設(she)(she)備(bei)(bei)(bei)(bei)運(yun)行日(ri)志(zhi)分開存儲(chu)(chu),采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)區(qu)設(she)(she)置讀寫權限限制(zhi),只允許(xu)授權操作進(jin)行數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)讀取或(huo)(huo)導(dao)出,運(yun)行日(ri)志(zhi)區(qu)則(ze)記錄設(she)(she)備(bei)(bei)(bei)(bei)開關機時(shi)(shi)(shi)間(jian)、故(gu)障信息等(deng),便于(yu)設(she)(she)備(bei)(bei)(bei)(bei)維護與故(gu)障排查。此外,設(she)(she)備(bei)(bei)(bei)(bei)需(xu)具(ju)備(bei)(bei)(bei)(bei)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)備(bei)(bei)(bei)(bei)份功(gong)能,可定(ding)期將存儲(chu)(chu)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)備(bei)(bei)(bei)(bei)份至外接存儲(chu)(chu)設(she)(she)備(bei)(bei)(bei)(bei)(如U盤(pan))或(huo)(huo)云端服(fu)務器,備(bei)(bei)(bei)(bei)份過(guo)程(cheng)(cheng)同樣(yang)(yang)(yang)(yang)采(cai)(cai)(cai)用加(jia)密(mi)(mi)(mi)(mi)傳輸,防止(zhi)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)在備(bei)(bei)(bei)(bei)份過(guo)程(cheng)(cheng)中被(bei)截取。當設(she)(she)備(bei)(bei)(bei)(bei)遭(zao)遇異常操作時(shi)(shi)(shi),數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)存儲(chu)(chu)模(mo)塊(kuai)(kuai)可自動(dong)觸發保護機制(zhi),鎖定(ding)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)訪問權限,直至通過(guo)授權驗(yan)證,確保采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)數(shu)(shu)(shu)(shu)(shu)(shu)據(ju)(ju)(ju)(ju)(ju)(ju)的(de)完整性與**性。天津原(yuan)生態水(shui)質(zhi)采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)器報價行情部分采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)器有(you)(you)能耗(hao)監(jian)測(ce)(ce)功(gong)能,終端可看實(shi)時(shi)(shi)(shi)能耗(hao),能依(yi)據(ju)(ju)(ju)(ju)(ju)(ju)能耗(hao)變(bian)化調整采(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)計劃(hua),保障任務完成。

原(yuan)生態水(shui)(shui)(shui)(shui)(shui)質采樣(yang)(yang)器(qi)采集水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)后(hou),需(xu)根據檢(jian)測(ce)項目選擇合適的固定(ding)(ding)劑(ji)并規范使用,以減緩水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)成(cheng)分(fen)變化(hua)(hua)。對于(yu)(yu)測(ce)定(ding)(ding)氨氮(dan)的水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang),需(xu)添(tian)(tian)(tian)加(jia)(jia)(jia)硫(liu)(liu)酸(suan)(suan)溶液調節pH值(zhi)至(zhi)1.5-2.0,硫(liu)(liu)酸(suan)(suan)可(ke)(ke)抑制水(shui)(shui)(shui)(shui)(shui)中(zhong)微生物活動,防止(zhi)氨氮(dan)轉化(hua)(hua)為(wei)亞硝(xiao)酸(suan)(suan)鹽或硝(xiao)酸(suan)(suan)鹽,固定(ding)(ding)劑(ji)添(tian)(tian)(tian)加(jia)(jia)(jia)量(liang)需(xu)根據水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)體(ti)積精確(que)(que)計算,通(tong)常每100ml水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)添(tian)(tian)(tian)加(jia)(jia)(jia)0.1ml濃硫(liu)(liu)酸(suan)(suan),避(bi)免(mian)添(tian)(tian)(tian)加(jia)(jia)(jia)過量(liang)導致水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)pH值(zhi)過低,影響后(hou)續分(fen)析。測(ce)定(ding)(ding)總磷的水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)需(xu)添(tian)(tian)(tian)加(jia)(jia)(jia)過硫(liu)(liu)酸(suan)(suan)鉀(jia)溶液,過硫(liu)(liu)酸(suan)(suan)鉀(jia)在加(jia)(jia)(jia)熱條件(jian)下可(ke)(ke)將水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)中(zhong)各種形態的磷轉化(hua)(hua)為(wei)正磷酸(suan)(suan)鹽,便于(yu)(yu)后(hou)續檢(jian)測(ce),添(tian)(tian)(tian)加(jia)(jia)(jia)時需(xu)確(que)(que)保(bao)(bao)溶液均勻(yun)混合,且(qie)水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)需(xu)在24小(xiao)時內完成(cheng)檢(jian)測(ce),避(bi)免(mian)固定(ding)(ding)劑(ji)失效。測(ce)定(ding)(ding)硫(liu)(liu)化(hua)(hua)物的水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)則(ze)需(xu)添(tian)(tian)(tian)加(jia)(jia)(jia)乙(yi)酸(suan)(suan)鋅和氫氧(yang)(yang)化(hua)(hua)鈉(na)混合溶液,乙(yi)酸(suan)(suan)鋅可(ke)(ke)與硫(liu)(liu)化(hua)(hua)物反應生成(cheng)硫(liu)(liu)化(hua)(hua)鋅沉淀,氫氧(yang)(yang)化(hua)(hua)鈉(na)能(neng)維持(chi)水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)堿性(xing)環境,防止(zhi)硫(liu)(liu)化(hua)(hua)物氧(yang)(yang)化(hua)(hua),固定(ding)(ding)后(hou)的水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)需(xu)置于(yu)(yu)棕色瓶中(zhong)避(bi)光保(bao)(bao)存(cun)。固定(ding)(ding)劑(ji)使用前需(xu)進行純度檢(jian)驗,確(que)(que)保(bao)(bao)無雜質干(gan)擾,同時操作人員需(xu)熟悉各類固定(ding)(ding)劑(ji)的化(hua)(hua)學性(xing)質,做好防護措施,避(bi)免(mian)固定(ding)(ding)劑(ji)接觸皮膚或造成(cheng)環境污染。
原生態水(shui)質采樣(yang)(yang)器的(de)(de)(de)(de)**操(cao)作(zuo)(zuo)(zuo)需兼顧(gu)操(cao)作(zuo)(zuo)(zuo)人(ren)員**與(yu)設(she)備(bei)穩定運行(xing)(xing),需明(ming)確操(cao)作(zuo)(zuo)(zuo)流程(cheng)中的(de)(de)(de)(de)**要點。在(zai)野外(wai)操(cao)作(zuo)(zuo)(zuo)前,操(cao)作(zuo)(zuo)(zuo)人(ren)員需檢查設(she)備(bei)的(de)(de)(de)(de)**防(fang)(fang)(fang)護(hu)部(bu)件(jian),如(ru)采樣(yang)(yang)桿的(de)(de)(de)(de)承重(zhong)性能(neng)、電(dian)(dian)源(yuan)線的(de)(de)(de)(de)絕緣(yuan)層是否(fou)(fou)完好,若(ruo)設(she)備(bei)配備(bei)電(dian)(dian)動升降系統(tong),需測試急停按鈕(niu)是否(fou)(fou)能(neng)正常觸發,避免升降過(guo)程(cheng)中出現機械故障導致**事故。在(zai)水(shui)邊(bian)(bian)操(cao)作(zuo)(zuo)(zuo)時(shi),操(cao)作(zuo)(zuo)(zuo)人(ren)員需穿(chuan)(chuan)戴防(fang)(fang)(fang)滑鞋與(yu)救(jiu)生衣(yi),若(ruo)采樣(yang)(yang)點位于陡峭岸邊(bian)(bian)或深水(shui)區,需搭建(jian)臨時(shi)防(fang)(fang)(fang)護(hu)圍欄(lan)或使(shi)用(yong)船(chuan)只輔助采樣(yang)(yang),禁止單(dan)人(ren)在(zai)無(wu)防(fang)(fang)(fang)護(hu)措施的(de)(de)(de)(de)情況下靠(kao)近危險水(shui)域。在(zai)處(chu)(chu)理(li)含(han)污染(ran)(ran)物的(de)(de)(de)(de)水(shui)樣(yang)(yang)時(shi),操(cao)作(zuo)(zuo)(zuo)人(ren)員需佩戴耐(nai)化學腐蝕的(de)(de)(de)(de)手套與(yu)護(hu)目鏡(jing),若(ruo)水(shui)樣(yang)(yang)中可能(neng)含(han)有有毒(du)物質(如(ru)工(gong)業廢水(shui)),需額(e)外(wai)穿(chuan)(chuan)戴防(fang)(fang)(fang)護(hu)服(fu),避免皮(pi)膚直接(jie)接(jie)觸水(shui)樣(yang)(yang)。采樣(yang)(yang)完成后,需對使(shi)用(yong)過(guo)的(de)(de)(de)(de)采樣(yang)(yang)瓶、管路進行(xing)(xing)分(fen)類處(chu)(chu)理(li),接(jie)觸過(guo)污染(ran)(ran)物的(de)(de)(de)(de)部(bu)件(jian)需單(dan)獨存(cun)放,使(shi)用(yong)特(te)殊消毒(du)劑(如(ru)次氯酸鈉溶液)浸泡消毒(du)后再進行(xing)(xing)清洗,防(fang)(fang)(fang)止污染(ran)(ran)物殘留對后續操(cao)作(zuo)(zuo)(zuo)造成風險。此外(wai),設(she)備(bei)運輸過(guo)程(cheng)中需使(shi)用(yong)防(fang)(fang)(fang)震包裝盒,將(jiang)采樣(yang)(yang)單(dan)元、控制單(dan)元等(deng)部(bu)件(jian)固定在(zai)包裝盒內,避免運輸顛簸(bo)導致部(bu)件(jian)損壞,確保設(she)備(bei)到達下一個采樣(yang)(yang)點時(shi)仍(reng)能(neng)正常使(shi)用(yong)。采樣(yang)(yang)器電(dian)(dian)池電(dian)(dian)量不(bu)足時(shi),會自(zi)動發出預警提示(shi),提醒操(cao)作(zuo)(zuo)(zuo)人(ren)員及時(shi)充(chong)電(dian)(dian)或更換電(dian)(dian)池。

原生態(tai)水(shui)(shui)(shui)質(zhi)(zhi)(zhi)采(cai)(cai)(cai)(cai)樣(yang)(yang)器在(zai)長(chang)(chang)期(qi)監(jian)測(ce)(ce)項(xiang)目(mu)中(zhong)(zhong)能發揮(hui)持續的(de)(de)(de)數據(ju)支撐作用(yong)(yong),助力(li)水(shui)(shui)(shui)資(zi)源管理(li)與(yu)生態(tai)保護。在(zai)流(liu)域水(shui)(shui)(shui)質(zhi)(zhi)(zhi)監(jian)測(ce)(ce)中(zhong)(zhong),可在(zai)河流(liu)沿線布設多個(ge)采(cai)(cai)(cai)(cai)樣(yang)(yang)點,每個(ge)采(cai)(cai)(cai)(cai)樣(yang)(yang)點配備(bei)(bei)一臺采(cai)(cai)(cai)(cai)樣(yang)(yang)器,通過(guo)統一的(de)(de)(de)時間設定,實(shi)現同步采(cai)(cai)(cai)(cai)樣(yang)(yang),對比分析不同河段的(de)(de)(de)水(shui)(shui)(shui)質(zhi)(zhi)(zhi)差異,掌握污染(ran)物(wu)在(zai)流(liu)域內的(de)(de)(de)遷移規律,為流(liu)域污染(ran)治理(li)方案的(de)(de)(de)制定提(ti)(ti)(ti)供(gong)數據(ju)依據(ju)。在(zai)湖泊生態(tai)保護監(jian)測(ce)(ce)中(zhong)(zhong),設備(bei)(bei)可長(chang)(chang)期(qi)固定在(zai)湖心(xin)或近岸區域,持續采(cai)(cai)(cai)(cai)集水(shui)(shui)(shui)樣(yang)(yang),監(jian)測(ce)(ce)水(shui)(shui)(shui)體(ti)富營(ying)養化(hua)(hua)程度(du)(如(ru)總氮(dan)、總磷(lin)含(han)量變化(hua)(hua)),當監(jian)測(ce)(ce)到藻類大(da)量繁殖的(de)(de)(de)前兆時,及時反饋數據(ju),為采(cai)(cai)(cai)(cai)取控(kong)藻措施(如(ru)投放微生物(wu)制劑、控(kong)制周邊化(hua)(hua)肥(fei)使用(yong)(yong))爭(zheng)取時間。此外,在(zai)地下(xia)(xia)水(shui)(shui)(shui)監(jian)測(ce)(ce)中(zhong)(zhong),設備(bei)(bei)通過(guo)特殊的(de)(de)(de)井管采(cai)(cai)(cai)(cai)樣(yang)(yang)裝置,深入地下(xia)(xia)含(han)水(shui)(shui)(shui)層采(cai)(cai)(cai)(cai)集水(shui)(shui)(shui)樣(yang)(yang),長(chang)(chang)期(qi)跟蹤地下(xia)(xia)水(shui)(shui)(shui)的(de)(de)(de)水(shui)(shui)(shui)位(wei)變化(hua)(hua)與(yu)水(shui)(shui)(shui)質(zhi)(zhi)(zhi)指標,了解地下(xia)(xia)水(shui)(shui)(shui)開采(cai)(cai)(cai)(cai)對水(shui)(shui)(shui)質(zhi)(zhi)(zhi)的(de)(de)(de)影響(xiang),為地下(xia)(xia)水(shui)(shui)(shui)資(zi)源的(de)(de)(de)合理(li)開發與(yu)保護提(ti)(ti)(ti)供(gong)參考。長(chang)(chang)期(qi)監(jian)測(ce)(ce)應用(yong)(yong)讓設備(bei)(bei)成為水(shui)(shui)(shui)質(zhi)(zhi)(zhi)變化(hua)(hua)的(de)(de)(de)“持續觀察者”,為生態(tai)環境的(de)(de)(de)長(chang)(chang)效管理(li)提(ti)(ti)(ti)供(gong)穩(wen)定的(de)(de)(de)數據(ju)支持。報廢后,采(cai)(cai)(cai)(cai)樣(yang)(yang)器中(zhong)(zhong)心(xin)金(jin)屬(shu)部件可拆解回收,經(jing)專(zhuan)業處理(li)提(ti)(ti)(ti)取有用(yong)(yong)金(jin)屬(shu),實(shi)現資(zi)源循環。河南原生態(tai)水(shui)(shui)(shui)質(zhi)(zhi)(zhi)采(cai)(cai)(cai)(cai)樣(yang)(yang)器價位(wei)
采(cai)樣器使用后(hou),需用清水(shui)(shui)徹底沖(chong)洗采(cai)樣管路(lu),去(qu)除殘留(liu)水(shui)(shui)樣,避免(mian)影響下次采(cai)樣結果。小型原生態水(shui)(shui)質采(cai)樣器報(bao)價行情
原(yuan)(yuan)生(sheng)態水(shui)(shui)(shui)(shui)(shui)質采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)器(qi)的(de)(de)采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)精(jing)度會受到多種(zhong)因(yin)素(su)影(ying)響,需通(tong)過針(zhen)對(dui)(dui)性(xing)措施(shi)進行控制以保(bao)(bao)障數據可靠。采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)口位置選擇是關鍵因(yin)素(su)之一,若(ruo)(ruo)采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)口靠近水(shui)(shui)(shui)(shui)(shui)體(ti)底(di)部,易吸入(ru)沉積(ji)物導(dao)致水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)(yang)(yang)濁(zhuo)度偏高(gao);若(ruo)(ruo)靠近水(shui)(shui)(shui)(shui)(shui)面(mian),可能因(yin)水(shui)(shui)(shui)(shui)(shui)面(mian)漂浮物影(ying)響水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)(yang)(yang)成分,因(yin)此需根據監測目(mu)標確(que)定(ding)合理采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)深度,通(tong)常地表水(shui)(shui)(shui)(shui)(shui)采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)口需避開表層(ceng)(ceng)50cm以內(nei)水(shui)(shui)(shui)(shui)(shui)體(ti)與底(di)層(ceng)(ceng)沉積(ji)物上(shang)方10cm以內(nei)水(shui)(shui)(shui)(shui)(shui)體(ti)。采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)流(liu)(liu)速(su)也會影(ying)響精(jing)度,流(liu)(liu)速(su)過快可能導(dao)致水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)(yang)(yang)中揮發(fa)性(xing)物質逸(yi)散,流(liu)(liu)速(su)過慢(man)則(ze)易造成管(guan)路(lu)內(nei)水(shui)(shui)(shui)(shui)(shui)樣(yang)(yang)(yang)(yang)滯留(liu),需通(tong)過設備調(diao)試將采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)流(liu)(liu)速(su)控制在50-150ml/min的(de)(de)合理范圍,同時(shi)確(que)保(bao)(bao)流(liu)(liu)速(su)穩定(ding)無波動。此外,采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)管(guan)路(lu)的(de)(de)清(qing)洗程度對(dui)(dui)精(jing)度影(ying)響明顯(xian),若(ruo)(ruo)管(guan)路(lu)殘留(liu)前次采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)的(de)(de)污染物,會導(dao)致交叉(cha)污染,因(yin)此每次采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)前需用(yong)目(mu)標水(shui)(shui)(shui)(shui)(shui)體(ti)反復沖(chong)洗管(guan)路(lu)至少3次,沖(chong)洗體(ti)積(ji)不低于管(guan)路(lu)容積(ji)的(de)(de)2倍,確(que)保(bao)(bao)管(guan)路(lu)內(nei)無殘留(liu)雜質。小型原(yuan)(yuan)生(sheng)態水(shui)(shui)(shui)(shui)(shui)質采(cai)(cai)(cai)(cai)(cai)樣(yang)(yang)(yang)(yang)器(qi)報價(jia)行情(qing)
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