Gas chromatography siv li cas hauv kev tshawb nrhiav hluav taws?
Gas chromatography siv li cas hauv kev tshawb nrhiav hluav taws?

Video: Gas chromatography siv li cas hauv kev tshawb nrhiav hluav taws?

Video: Gas chromatography siv li cas hauv kev tshawb nrhiav hluav taws?
Video: GC-MS For Beginners (Gas Chromatography Mass Spectrometry) 2024, Kaum ib hlis
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1 Cov kws tshawb fawb thiab ua txhaum cai cov kws tshawb nrhiav siv ntau yam kev tshuaj ntsuam xyuas los txiav txim seb hom accelerants siv pib lub hluav taws . Hauv chav kuaj no, koj yuav siv roj chromatography ( GC ) los txiav txim qhov muaj pes tsawg leeg thiab / lossis cov qauv ntawm cov khoom siv hluav taws xob siv raws li tus accelerant pom nyob rau ntawm ib tug ua txhaum cai scene.

Ntawm no, yuav siv cov roj chromatography li cas hauv kev txheeb xyuas qhov sib xyaw?

Gas chromatography ( GC ) yog ib hom ntawm siv chromatography hauv analytical chemistry rau kev sib cais thiab kev txheeb xyuas tshuaj sib xyaw uas ua tau yuav vaporized yam tsis muaj decomposition. Lub gaseous tshuaj sib xyaw raug soj ntsuam cuam tshuam nrog cov phab ntsa ntawm kem, uas yog coated nrog rau theem nyob ruaj khov.

Ib yam li ntawd, chromatography siv li cas hauv kev sim tshuaj? Chromatography yog ua pa ntawm Huab cua tshiab rau Kev Xeem Tshuaj . Qhov zoo qub-fashioned txoj kev ntawm kuaj tshuaj Nws suav nrog kev tshuaj xyuas cov qauv tso zis kom pom cov ntsiab lus ntawm cov khoom txwv tsis pub nyob hauv tus neeg mob lub cev. Nws tau sim, nws yog kuaj , nws ua haujlwm.

Ib yam li ntawd, koj tuaj yeem nug, cov neeg tshawb nrhiav Arson yuav ua li cas thiaj nrhiav tau cov neeg nrawm?

Lub cev ntsuas tau siv mus ntes lub xub ntiag ntawm accelerants yog localized hlawv qauv rau cov plag tsev thiab qhov chaw thiab nyiaj siv ua haujlwm puas tsuaj tsis sib haum nrog cov roj uas muaj nyob hauv ib txwm muaj. Qhia los ntawm hluav taws fighters los yog pom ntawm ib tug ceev ceev hluav taws los yog cov ntxhiab tsw phem ua tau kuj qhia txog lub xub ntiag ntawm ib qho ceev.

Yuav siv chromatography li cas los daws cov teeb meem txhaum cai?

Keeb kwm: Chromatography yog ib txoj hauv kev los tshuaj xyuas cov khoom sib tov los ntawm kev sib cais rau hauv cov tshuaj uas lawv tau tsim. Cov kws tshawb fawb forensic muaj peev xwm siv tus cwj mem chromatography rau daws teeb meem txhaum cai los ntawm kev sib piv cov ntaub ntawv los yog stains pom ntawm a kev ua txhaum scene rau tus cim lossis cwj mem uas yog tus neeg raug liam.

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