Imilinganiselo emiselweyo ye-8-60 ml yesampulu ye-vials ye-Vials ejongene nezeNdalo

1. Imvelaphi kunye nokubaluleka
   Ukubeka esweni kweliso kwindalo, imilinganiselo ye-8-60 ml ye-ML EPARDS (iibhotile zeVOA) ziikhonteyina zokuqokelela iiVOC, iisampulu zamanzi kunye nomhlaba. Yenziwe ngohlobo lwebanga eliphezulu ndixakekile ngeglasi nge-ptfe \ / Silicone Septa, ezi vils ziqinisekisa ukungabikho kwamachiza, ungcoliseko oluncinci, kunye nokulandelwa ngokupheleleyo komkhondo. Sebenzisa i-vials ecocwe kwangaphambili, ecacileyo okanye i-amber voils edibana nemigangatho ye-EPA inciphisa ukwahluka kwelebhu ngaphakathi kwaye kwandise ukhuseleko lwedatha.

2. Iindlela zesampulu kunye nokulondolozwa
   a. Ingqokelela yentsimi
    i. Sebenzisa iileyile zangaphambi kokuba zibhalwe ngaphambi kwexesha, ezicocwe kwangaphambili ngaphandle kweprist.
    II. Gcwalisa indawo kwi-EPA ye-EPA ye-5035 (akukho moya).
    III. Nxiba iigloves kwaye usebenzise izixhobo ezinikezelweyo ukunqanda ungcoliseko.
   b. Ukugcinwa
    i. Yongeza indawo yokugcina (E.G., i-SulFuric Acid yezinto ezincinci; I-Sodium Bigulf ye-VOCs).
    II. Qinisa i-cap to cinezela uSeptum ngokuchasene nendawo yesampulu, ukutshixa kuhlalutyi.
   c. Ezothutho kunye nokuGcina
    i. Gcina nge-4 ° C ebumnyameni; Izothutho kwiicoeles ezinamaqhosha ezinepakethe yomkhenkce.
    II. Gcina izazisi ezikhethekileyo ze-Vial kulo lonke itsheyini.
    III. Bambelela kwi-EPA ethatha ixesha lokuqhuba (E.G., VACS ≤ iintsuku ezili-14).
   d. Irisithi yokufumana i-lab kunye nohlalutyo
    i. Vavanya ingqibelelo yokwenyani; I-Ids ye-LOG yokutyunjwa.
    II. Cazulula ngokuthe ngqo (E.G., i-ERPECE GC) okanye ukudluliselwa ngokuphathwa kancinci.

3. Izinto zekhontelo kunye nokwazisa kwesampulu
   a. Chwetheza i-borossililicate iglasi
    i. I-80% i-Sio₂-ephezulu yokunganyangeki ye-shock kunye ne-acid \ / isiseko se-Intertunity.
    II. Ayiboni ialkaline ion.
    III. Iinguqulelo ze-Amber zikhusela uhlalutyo oluqaqambileyo.
   b. Iglasi yesoda-lime (ayicetyiswanga)
    i. Umxholo ophakamileyo uAlkali unokukhupha iisampulu ze-acidic, iziphumo zokugula.

4. Iimfuneko ezilawulayo kunye nokuthobela
   a. Indlela ye-EPA
    i. Indlela i-5035A (SW-846): 60 Ml Septum Jars okanye i-40 ml ptfe-lingere i-vials ye-vials ye-COCS.
    II. Indlela ye-1631: Uhlalutyo lwe-mercury lufuna i-fep \ / pfa-iliti okanye uchwetheza izikhongo zeglasi.
    III. Iindlela ezingama-524.2 & 5021A: Amber Borossililicate vials nge-ptfe \ / Silicone Septa.
    iv. I-40 cfr 136: Izikhongozeli ezivunyiweyo kufuneka zihambise <50 ppb toc kunye ne-thrican yentsimbi.
   b. Ukuqinisekiswa kwentsebenzo
    i. I-Vials Vials phantsi kwendlela i-5035A iphumelele ≥ 95% yeVOC.
    II. I-fep \ / i-PFA-LEAD ye-PFA

5. Uyilo lwe-cap kunye nesampulu ehlanganisiweyo yeendlela ezilungileyo
   a. I-cap & Septa
    i. I-ptfe \ / isiliki septa phantsi kwe-phenolic okanye iplastikhi yeplastiki yokuthintela ukuphulukana kweVOC.
    II. I-fep \ / i-PFA-LEED ye-PFE
    III. Qinisekisa ukuba yonke i-CAPS iyangqina ukuba ivuza, i-Intert, ne-EPA ehambelana nayo.
   b. Isisombululo esiDityanisiweyo seSamPling
    i. I-One-Spart-Spartm-Scowllow-Sp-846 5035): I-LAB-I-Vials elungiselelwe indawo kwaye ibuyiselwe kwi-purge-and-trap.
    II. Gcwalisa ngqo & itywina linciphisa amanyathelo okudluliselwa, ukunciphisa umngcipheko wokungcola.
    III. Izixhobo zokubopha umhlaba ezilayisha iisampulu ze-bulk ngokuthe ngqo kwi-vials ye-vials yokunciphisa ilahleko.

6. Ukuqukumbela
   Ukusuka kwingqokelela yasentsimini ngohlalutyo lwelebhu, esebenzisa i-EPA -60 ML CHILINILILA INDAWO-NOKUTHENGA ITekhnoloji yeTekhnoloji kwi-Chemiry-iqinisekisa ukuthobela i-chemistry yesampulu, kunye nokuthotyelwa komthetho. Izitya ezimiselweyo kunye neendlela zokusebenza zokusebenza zinciphisa ukwahluka kwelebhu, ukuhambisa idatha ethembekileyo, yokusindisa.

Izenzo eziphambili

• Sebenzisa ukucocwa kwangaphambili, i-enduppace-free vials kwi-Sties kwi-Stives enegloves kunye nezixhobo ezinikezelweyo.

• Yongeza izinto ezimiselweyo kwaye uqinise i-ptfe \ / isiliki septa sepga caps kwangoko.

• Gcina nge-4 ° C ebumnyameni; Ezothutho ezipholileyo, izikhongozeli eziqinisekisiweyo.

• Vavanya i-vials kunye nee-ID ze-LOG ngaphambi kohlalutyo; Sebenzisa i-posice ye-GC okanye ugqithiselo lwempembelelo ephantsi.

• Khetha uhlobo lweglasi ye-borossililicate yeglasi (i-amber ye-feed) kunye ne-fep \ / ye-PFA-LEEX yeMatriki enomsindo.

• Ukwamkela i-onflow-tion-tion-kunye ne-teali yokugcwalisa ukunciphisa ilahleko yelahleko.