Na turanci
Sinanci
-
Bayan Fage & Muhimmancin
A cikin Kulawar muhalli, daidaitawa 8-60 ml epa-babban gilashin vials (kwalabe na VOA) sune kwantena don tattara murɗa na ruwa, samfuran ruwa, da kuma ruwan 'yan ƙasa. An yi shi ne daga nau'in girman-aji Na Borosilicas Gilashin tare da PTFE \ / Silicone Septa, waɗannan vials suna tabbatar da hadewar sunadarai, ƙarancin ƙasa - gurbata-full-carcarfin jiki. Ta amfani da tsabtace, share ko amber Voa voa waɗanda ke haɗuwa da ƙa'idodin Epa na rage yawan ɗabi'a da haɓaka ƙirar dakin gwaje-gwaje. -
Samfura & Addiyo
a. Tarin filin
i. Yi amfani da pre-mai taken, vial-tsabtace vials ba tare da wani kai ba.
II. Cika shafin yanar gizo a kowace hanyar EPA 5035 (babu rata iska).
III. Satar safofin hannu da amfani da kwazo don gujewa gurbatawa.
b. Kiyayyewa
i. Addara abubuwan da aka adana (misali, sulfurucuric acid don kwayoyin; sodium bisulfate na vocs).
II. Tefenzarara hula zuwa latsa Septum da samfurin farfajiya, kulle a cikin nazarin.
c. Sufuri & Adana
i. Adana a 4 ° C a cikin duhu; Sufuri a cikin infolated coolers tare da kankara fakitoci.
II. Kula da ID na vial na musamman a cikin jerin tsare.
III. A bi a lokacin rike lokacin rike lokaci (E.G., VOCES ≤ kwanaki 14).
d. Lab reript & bincike
i. Bincika amintacciyar aminci; rogs IDs don waƙar fata.
II. Bincika kai tsaye (E.G., Headspace GC) ko canja wuri tare da karancin kulawa. -
Kayan kwandon & samfurin kwanciyar hankali
a. Rubuta na Borosilicas
i. ≥ 80% siio₂-babban zafin jiki-girgije juriya da acid \ / tushe da hadari.
II. Ba ya leach alkaline ions.
III. Amber iri suna kare nazarin mai haske mai nauyi.
b. Gilashin lemun tsami (ba da shawarar)
i. Mafi girman abun ciki na iya yin leach a cikin samfuran acidic, sassauƙa sakamako. -
Bukatun Kayayyaki & Yarda
a. Bayanin Bayanai na EPA
i. Hanyar 5035A (SW-846): 60 ml septum kwalba ko 40 ml ptfe-ledk-da aka yi amfani da dunƙule-cap vials don vocs ƙasa.
II. Hanyar 1631: Barkace nazarin Mercury na buƙatar fep \ / PFA-Linked ko buga abubuwan kwantena na gilashin.
III. Hanyoyi 524.2 & 5021A: Amber borosilicate voa vials tare da ptfe / silicone Septa.
IV. 40 cfr 136: kwantena da aka yarda da su dole ne su isar da <50 ppb toc da sakaci mara nauyi.
b. Tabbatar aiwatarwa
i. VOA VIERS A karkashin hanyar 5035A cimma ≥ 95% voc dawo da aiki.
II. Fep \ / PFA-Linkes caps nuna babu wani muhimmin kera ƙarfe koda a cikin acid mai ƙarfi. -
Cap fort & hadar Sampling mafi kyawun ayyuka
a. CAP & SEPTA ZUCIYA
i. PTFE \ / silicone selta a karkashin phenolic ko filastik na filastik yana hana VOC asarar.
II. Fep \ / PFA-Linedils na m samfuran (m acid \ / oxidizer).
III. Ka tabbatar duk iyakoki suna da kyau-hujja, Inver, da EPa-mai yarda.
b. Hanyoyin Samfuran Samfura
i. Mataki na mataki-mataki (SW-846 5035): Lab-Shirye-shiryen vials cike da-site kuma an dawo da tarkon kai tsaye da tarko.
II. Direct Cokali da hatimi na rage matakan canja wuri, rage haɗarin gurbatawa.
III. Na'urorin ƙasa da ke ɗaukar samfuran bulk kai tsaye cikin VOA VILS ƙarin yanke asara ga asara. -
Ƙarshe
Daga tarin filin daga cikin bincike na dakin gwaje-gwaje, yin amfani da EPA-Certrefied 8-60 ml nau'in sunadarai-voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voa voe Cikakkun kwantena da aiki suna rage karfin Inter-Lab, wanda ya ba da tabbataccen, bayanan muhalli.
Mahimmin aiki
-
Yi amfani da tsabta, kanun-kai-free voa vials on-site tare da safofin hannu da kuma kwajawa.
-
Ara da aka sanya abubuwan adawar da kaiɗa PTFE \ / silicone Silicone SPEPT nan da nan.
-
Adana a 4 ° C a cikin duhu; kai a sanyaya, kwantena mai ɗauke da shi.
-
Bincika vials da rogs rogs kafin bincike; Gudun jagorancin kai tsaye ko canja wurin aiki.
-
Zaɓi nau'in gilashin da aka berosilics (amber don mai hankali-mai hankali) da kuma fep \ / pFA-rijiyoyin da aka yi amfani da su don matricive matrices.
-
Yi amfani da mataki-mataki na cika-da-da-hatimi don rage asara mai juyawa.
