Hauv kev chemicals, Roj Chromatography (GC) yog ib txoj kev sib xws. Nws rho tawm, cais cov qhov sib txawv, thiab ntsuas cov complex sib xyaw ua ke ntawm tsis ruaj khov thiab ib nrab tsis yooj yim sib txuas. Ntawm lub plawv ntawm ib lub moj khaum GC ib qho lus dag txoj kab ncaj ncaj vial. Nws yog tus phab ej uas tsis tau. Nws yog ib qho tseem ceeb hauv kev lees paub kev txiav txim siab thiab tsis muaj kev nyab xeeb ntawm koj los txog.

GC vials yog cov ntim me me. Lawv ua qauv daws teeb meem los tuav. Lawv kuj tau ua los qhia cov kev daws teeb meem rau hauv cov roj chev chromatograph. Cov khoom siv yooj yim no yog qhov tseem ceeb. Lawv khaws koj cov ntaub ntawv GC zoo thiab muaj zog. Lawv hloov cov qauv duab qhia, cuam tshuam tshuaj xyuas kev tshaj tawm, thiab cuam tshuam rau kev ua haujlwm ntawm lub cev.

Qhov kev xaiv ntawm GC Vial tuaj yeem muaj cov kev cuam tshuam zoo heev rau kev ua tiav ntawm koj cov tshuaj chromatography. Txhua tus tsim qauv tshwj xeeb tuaj yeem cuam tshuam koj cov kws tshuaj ntsuam. Qhov no suav nrog cov khoom muaj pes tsawg leeg thiab lub suab. Cov xwm txheej no cuam tshuam rov qab. Lawv kuj cuam tshuam qhov tseeb thiab rov ua dua ntawm koj cov txiaj ntsig.

Xav paub txog qhov tseem ceeb ntawm HeadSpace vials hauv chromatographic tsom xam? Txheeb xyuas peb tsab xov xwm tshaj plaws:Vim li cas HeadSpace vials siv hauv chromatography? 12 Kaum kaum

GC Vial hom

GC vials tuaj nyob rau ntau hom tseem ceeb. Txhua tus muaj cov cwj pwm tshwj xeeb thiab siv.

1. Ntsia cov vials-sab saum toj:

Cov no yog qhov qhia tau ib txwm muaj ntawm GC vials, hais txog lub strung cap uas ruaj ruaj rau kev tso tawm.Ntsia hlau-saum vialsLos rau ntau qhov ntau thiab tsawg thiab cov ntaub ntawv, xws li iav, polypropylene. Lawv kuj muaj ntau txoj kev xaiv. Qhov no ua rau lawv xaiv ntau yam rau ntau qhov GC daim ntawv thov. Lub hau muaj xov. Nws ua ib daim foob. Qhov kev ua piv txwv no evaporation thiab paug. Nws tseem tso cai rau cov qauv yooj yim tuav thiab thauj. Ntsia hlau-saum vials yog haum rau ob txhais phau ntawv thiab tshuab gc diamondows.

2. Crimp-sab saum toj vials:

Crimp-sab saum toj vialsSiv cov txhuas lossisButyl Roj Hmab Tiv ThaivCov. Txhawm rau tsim lub foob pob ntseg, Crimp lub nres nres rau hauv lub caj dab. Cov qauv tsim no feem ntau nyiam rau kev txheeb xyuas. Lawv yuav tsum muaj cov ntsaws ruaj ruaj rau cov neeg tsis huv lossis kho kom haum. Cov crushed foob yog robust ntau thiab qhia ua phem. Qhov no ua rau Crimp-sab saum toj vials rau kev xaiv saum toj kawg nkaus rau highputhput lossis automated GC work d workflows. Cov no yog cov haujlwm ua haujlwm uas qhov qauv coj ncaj ncees yog qhov tseem ceeb heev.

3. Headspace vials:

Iav ua rau cov vials no. Lawv yog rau Headspace GC Kev Ntsuam Xyuas. Lawv muaj lub ntim loj dua. Qhov no tso cai rau qhov chaw gaseous heasadace saum toj no cov kua lossis cov qauv khoom. Volatile Analytestes yauv hloov nrawm nrawm ntawm Headspace vials. Lawv sib koom ua ke rau hauv kev sib haum xeeb caj ces. Cov qauv vaporizes, thiab tom qab ntawd nws tau txhaj rau GC. Hom vial no yog qhov tseem ceeb rau kev txheeb xyuas cov tebchaw hloov chaw. Cov no tej zaum yuav nyuaj los qhia kev siv txoj kev ua kua ua kua.

4. Micro vials:

Micro vials tseem hu ua cov ntxig lossis cov hnab ntim. Lawv yog cov ntim me me ntim uas nkag mus sab hauv lub ntsiab gc vial. Thaum cov qauv columes yog cov tsawg, cov neeg siv lawv. Qhov no yog qhov tseeb rau cov kws tshuaj ntsuam uas xav tau kov tshwj xeeb. Piv txwv li, derivatization lossis dilution. Micro vials pab kom txiav cov qauv poob. Lawv xyuas kom meej hloov cov qauv me me rau hauv GC system. Qhov no ua rau lawv muaj txiaj ntsig. Lawv tseg cov qauv muaj nuj nqis thiab ua haujlwm nrog txoj kab kev ntsuas theem.

Thaum xaiv ib qho GC Vial rau koj daim ntawv thov, koj yuav tsum xav txog ntau yam. Cov no suav nrog cov qauv ntim thiab ntsuas cov khoom. Tsis tas li, sib xyaw nrog koj cov GC system thiab txhua txoj kev xav tau. Xaiv txoj kev Vial txiav txim siab qhov tseeb thiab kev sib xws ntawm GC cov txiaj ntsig. Txheeb xyuas koj cov kev xav tau thiab xaiv hom vial zoo tshaj plaws.

Ua kom muaj lub cim kom tsim nyog yog qhov tseem ceeb thaum siv HeadSpace vials. Nyeem peb phau ntawv qhia txog xaiv lub hau sab xis los tiv thaiv kev ua piv txwv thiab tiv thaiv kev paug lossis paug rau thaum koj chromatographic analalyzes: Puas yog koj xaiv txoj cai cap rau koj lub taub hau vial?

Hom Roj Roj Chromatography

Roj Chromatography yog cov txheej txheem txheeb xyuas lwm yam. Nws tuaj yeem lis ntau cov qauv hom thiab hom tshuaj pleev. Koj yuav xaiv GC system raws li koj cov qauv thiab tshuaj ntsuam. Xav txog lawv txoj kev nyuaj, thiab nws yog koj qhov kev sib cais thiab kev kuaj pom.

1. Analytical roj chromatography.

Qhov no yog hom feem ntau ntawm cov roj roj chromatograph. Cov kws tshawb nrhiav siv nws kom pom thiab ntsuas qhov chaw ntawm kev sib xyaw. GC cov tshuab feem ntau yog nruab nrog ntau hom kev ntes. Cov no suav nrog Flame ionization detectors (FID). Lawv kuj suav nrog Thermal ua cov taw des detectors (TCD), thiab Cov Tsiaj Av Spectrometers (MS). Qhov kev xaiv yog nyob ntawm cov analytes thiab kev xav tau kev pab. Analytical GC muab kev sib cais ntshiab thiab rhiab tau nrhiav kom tau. Nws yog ib qho haujlwm ua haujlwm rau ntau cov kev siv. Cov no suav nrog kev txheeb xyuas ib puag ncig. Lawv kuj suav cov zaub mov thiab dej haus. Lawv tswj cov tshuaj zoo, thiab tshuaj xyuas cov tshuaj lom neeg.

2. Npaj GC:

Cov kws tshawb fawb tsim npaj GC tshuab cais tawm thiab ntxuav cov tebchaw. Lawv siv cov khoom loj thiab cov qauv ntau dua li kev ntsuas gc. Tib neeg feem ntau siv cov tshuab los tsim cov qauv. Lawv kuj siv lawv los cais cov isomers lossis purify compounds rau kev tsom xam lossis synthesis. Npaj GC tso cai rau kev khaws cov feem ntawm cov feem ntawm cov tebchaw tshwj xeeb. Koj tuaj yeem siv lawv rau ntau txoj haujlwm tom qab. Piv txwv li, nrhiav cov qauv sib txuas lossis ua cov ntawv pov thawj.

3. Headspace GC:

Cov txheej txheem GC tshwj xeeb no. Cov kws tshawb nrhiav siv nws los tshawb xyuas cov volatile thiab ib nrab tsis meej cov tebchaw. Nws ua haujlwm ntawm cov khoom ua kua lossis kua. Headspace GC tshuaj xyuas lub gaseous theem (headspace) saum toj tus qauv. Cov thev naus laus zis cais cov roj no thiab cov tswv yim rau hauv GC system. Qhov no tso cai rau kev kuaj pom ntawm cov tebchaw. Lawv yuav nyuaj rau kev tshawb xyuas siv cov kua lossis cov khoom txhaj tshuaj ncaj ncees. Headspace GC yog qhov zoo rau kev txheeb xyuas cov khoom xyaw volategy (vocs) thiab cov kuab tshuaj uas nyob ntawm. Nws tseem zoo rau lwm tus neeg phais neeg tsis meej. Nws ua haujlwm tau zoo rau cov no hauv cov mixatures. Cov mixtures suav nrog cov tshuaj, khoom noj khoom haus, thiab ib puag ncig.

4. Multidimensional GC (GC × GC):

Hauv kev teeb tsa no, cov qauv hauv qab kev sib cais 2D sib cais. Qhov no tso cai rau kev daws teeb meem zoo dua thiab cov cim ntawm cov mixatures nyuaj. GCXGC System SIV ob kab nrog cov theem sib txawv. Lawv txuas rau lawv hauv cov koob kom ua kom muaj zog sib cais thiab xaiv tau. GCXGC tuaj yeem ua tiav ntau dua lub peev xwm ntau dua. Nws ua qhov no los ntawm kev sib cais cov peev xwm sib cais ntawm ob kab. Nws tseem tuaj yeem daws cov tshuaj ntsuam xyuas uas tuaj yeem siv sijhawm nyob rau hauv ib qho GC system. Cov txheej txheem no zoo rau kev txheeb xyuas cov qauv nyuaj. Cov no suav nrog cov khoom siv roj av, cov roj tseem ceeb, thiab cov roj ib puag ncig. Lawv xav tau qib siab ntawm kev sib cais.

5. Roj Chromatography-Pawg Spectrometry (GC-MS)

Roj chromatography thiab huab hwm coj huab hwm coj loj yog qhov cuab yeej muaj zog. Lawv tuaj yeem txheeb xyuas thiab ntsuas tsis paub cov tebchaw. GC-MS systems txaus siab rau GC qhov sib cais muaj peev xwm. Lawv kuj tau txais cov txheej txheem elucidation thiab kev pom zoo los ntawm huab hwm coj hluav taws xob. Kev sib tw nrhiav kev thov hauv kev tsom xam ib puag ncig, forensics, thiab metabolomics teb. GC cais cov qauv rau hauv nws qhov chaw. MSThawj qhia txog txhua qhov sib txuas. Nws ntsuas lawv raws lawv cov cim loj heev. Qhov no tso cai rau kev tsom xam tag nrho ntawm cov mixatures nyuaj.

Nrhiav rau kev ua tiav cov ntsiab lus ntawm headspace vials? Peb cov lus qhia hauv qhov tob npog txhua yam koj xav paub - los ntawm cov qauv tseem ceeb thiab kev coj ua zoo rau GC thiab HPLC: Cov Kev Qhia Txog Headspace vials: Nta, Xaiv, Nqe, thiab Siv

Tsis hais txog GC cov txheej txheem siv. Qhov kev xaiv ntawm GC vial yog qhov tseem ceeb heev. Nws ua kom muaj kev vam meej thiab kev ntseeg tau ntawm koj cov haujlwm ua haujlwm. Xaiv lub vial uas phim koj hom, cov khoom siv, thiab cov qauv tsim qauv. Qhov no tuaj yeem txhim kho cov qauv taw qhia qauv thiab kev rov qab ntsuas. Nws tseem yuav txhim kho qhov zoo thiab rov ua dua tshiab ntawm koj cov ntaub ntawv GC.

Yav dhau los:

HPLC Vials thiab Caps Nqe: Ib qho kev qhia tob

Tom ntej:

20ml Headspace Vials Daim Ntawv Thov