Gas chromatography. ohere nke usoro

Gas chromatography - analysis usoro, na-a dị nnọọ mma n'ọnụ mmepe. Na nlezianya na-amụ ya n'ọnụ na ihe ntọala so kemgbe afọ iri, ngwa mmepe nke a Usoro.

Ọ maara na gas chromatography iche ụzọ ndị ọzọ na na gas na-eji ya dị ka mobile na-adọ. The anyịnya na-adọ nwere ike ịbụ a siri ike ma ọ bụ mmiri mmiri. Dabere na nke a na-atụ aro adsorption gas ma ọ bụ gas-mmiri mmiri chromatography.

Nkewa nke mixtures nke bekee na ngwaọrụ dị ka a gas chromatograph, bụ n'ihi na Ugboro ugboro ugboro, nke usoro nke nkesa mmiri n'etiti anyịnya mmiri mmiri ma ọ bụ ihe siri ike na-adọ na a na-akpụ akpụ gas. The nkewa usoro dabeere iche iche na volatility na solubility nke analytes. Otu akụrụngwa, onye volatility na a nyere okpomọkụ dị ukwuu ma na-erughị solubility nke anyịnya na-adọ ga-akpali site na kọlụm ngwa ngwa.

Iji gas dị ka ụgbọelu Rolling na-enye ohere iji nweta uru ndị dị otú ahụ dị ka nkewa nke constituent bekee doo anya na ọsọ analysis. Test sample na ẹkenam n'ime kọlụm na gaseous n'ụdị ma ọ bụ na Alụlụụ ụdị. Na usoro a ọ bụ omume na-nyochaa bụghị naanị, haruru ma mmiri mmiri na ihe siri ike bekee, nke ịsụgharị n'ime chọrọ ikwu site kpo oku. Na nke a, na gas chromatography okpomọkụ na nke dum usoro, na arụ orụ a nnọọ oké mkpa. Performance ókè gas adsorption analysis usoro àmà site 70 ruo 600 ° C, na n'ihi gas-mmiri mmiri - site 20 ruo 400 Celsius C. Ụlọ ọrụ na-arụpụta a gas chromatograph, nke na-enye ohere mmemme okpomọkụ n'ọdịnihu.

Nke a na usoro na-eme ka o kwe omume iji nyochaa a umi molekụla ibu na-erughị 400. Ha adịghị amalite irekasị na evaporation, na anaghị agbanwe ha mebere atumatu na ụdi odide.

Tumadi na gbasara nyocha omume iji gas-mmiri mmiri chromatography. Tụnyere gas adsorption ọ nwere ụfọdụ uru, nke na-tumadi metụtara na a dịgasị iche iche nke omume anyịnya mmiri mmiri na-adọ, na elu na-adị ọcha na nke ahụ bụ nnọọ ihe dị mkpa, na homogeneity nke liquids.

Gas chromatography - a ngwa ngwa usoro, ji elu kpomkwem, uche na ikike machiini. The egosipụta na mgbanwe nke usoro eji na-ekpebi a kpọmkwem ngwaọrụ. Gas chromatography na ọrụ maka quantitative analysis na-enye doro nnọọ anya na ya pụta, nke bụ na obi abụọ.

Nke a na usoro nwere ike idozi ọtụtụ gbasara nyocha nsogbu, ike na-ekpebi ruru nke njikọ a kacha nta nke uzuoku nsogbu. A usoro nke gas chromatography na-eji maka ọcha ọgwụ, na-ekewa n'ime onye components nke mixtures. Ọ bụ karịsịa irè na nkewa nke yiri mejupụtara nke bekee nke si n'otu klas: organic asịd, alcohols, hydrocarbons.