KR101585323B1 - 수소/중수소 교환 및 질량 분광법을 이용한 혼합물 중 질소화합물의 분석방법 - Google Patents
수소/중수소 교환 및 질량 분광법을 이용한 혼합물 중 질소화합물의 분석방법 Download PDFInfo
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- KR101585323B1 KR101585323B1 KR1020140045580A KR20140045580A KR101585323B1 KR 101585323 B1 KR101585323 B1 KR 101585323B1 KR 1020140045580 A KR1020140045580 A KR 1020140045580A KR 20140045580 A KR20140045580 A KR 20140045580A KR 101585323 B1 KR101585323 B1 KR 101585323B1
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- 229910052805 deuterium Inorganic materials 0.000 title claims abstract description 41
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical group [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 38
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 35
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 title claims description 16
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 title description 26
- -1 nitrogen-containing compound Chemical class 0.000 claims abstract description 55
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- 239000010779 crude oil Substances 0.000 claims description 46
- OKKJLVBELUTLKV-MZCSYVLQSA-N Deuterated methanol Chemical compound [2H]OC([2H])([2H])[2H] OKKJLVBELUTLKV-MZCSYVLQSA-N 0.000 claims description 34
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- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 16
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- 238000001514 detection method Methods 0.000 claims description 7
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 7
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- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
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- MYKQKWIPLZEVOW-UHFFFAOYSA-N 11h-benzo[a]carbazole Chemical compound C1=CC2=CC=CC=C2C2=C1C1=CC=CC=C1N2 MYKQKWIPLZEVOW-UHFFFAOYSA-N 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/622—Ion mobility spectrometry
- G01N27/623—Ion mobility spectrometry combined with mass spectrometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/10—Ion sources; Ion guns
- H01J49/16—Ion sources; Ion guns using surface ionisation, e.g. field-, thermionic- or photo-emission
- H01J49/161—Ion sources; Ion guns using surface ionisation, e.g. field-, thermionic- or photo-emission using photoionisation, e.g. by laser
- H01J49/162—Direct photo-ionisation, e.g. single photon or multi-photon ionisation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
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Abstract
Description
도 2는 표 2에 열거된 표준 화합물의 APPI HDX 스펙트럼을 나타낸 도이다. 도 2에 나타난 데이터는 표 3에 요약된 정보로 사용되었으며, 도 2의 숫자는 표 2의 것과 일치한다.
도 3은 320 ~ 530 및 520 ~ 720 m/z에 대한 a) QHD 수지 및 b) APM-FA 수지의 CASI 모드에서 (+)-APPI FT-ICR MS 스펙트럼이다.
도 4는 두 개 유속에서 a) QHD 및 b) APM-FA 수지로부터 관찰된 질소함유 화합물의 합산된 상대 존재비를 나타낸 바 그래프이다. 각 그래프에서 좌측 및 우측 컬럼은 각각 으로 획득한 스펙트럼으로부터 생성하였다.
도 5는 320 ~ 530 및 520 ~ 720의 두 개의 m/z 창에서 QHD 수지에서 a) [M-H+D]+·및 b) [M]+의 DBE 분포 및 APM 수지에서 c) [M+D]+의 DBE 분포를 나타낸 바 그래프이다.
도 6은 표 4에 요약한 정보에 대한 미가공 데이터를 나타낸 도이다. a) 이차 아민의 예(C-알킬 또는 페닐피롤을 포함), b) 삼차 아민의 예(N-알킬 또는 페닐 피롤을 포함), 및 c) 피리딘 고리형 화합물의 예이다.
Claims (15)
- 질량 분광법을 이용한 혼합물 중의 질소함유 화합물 분석방법에 있어서,
중수소화 용매를 이용한 대기압 광이온화(atmospheric pressure photoionization)에 의해 수소/중수소 교환반응(hydrogen/deuterium exchange)을 수행하는 단계를 포함하는, 질소함유 화합물 분석방법으로서,
상기 분석방법은 질소함유 화합물의 화학적 작용기의 구조를 규명하고,
상기 질소함유 화합물의 화학적 작용기의 존재는 일차 아민인 경우, 다중 수소/중수소 교환에 따른 이온라디칼종 및 추가적인 중수소화에 따른 이온종의 검출로; 피롤을 포함하는 이차 아민인 경우, 단일 수소/중수소 교환에 따른 이온라디칼종 및 추가적인 중수소화에 따른 이온종의 검출로; N-치환된 피롤을 포함하는 삼차 아민인 경우, 수소/중수소 교환없는 이온라디칼종 및 중수소화에 따른 이온종의 검출로; 또는 피리딘인 경우 중수소화에 따른 이온종의 검출로 확인하는 것인 분석방법.
- 제1항에 있어서,
상기 수소/중수소 교환반응은 시료를 용해시킨 중수소화 제1용매 및 시료를 불포함하는 중수소화 제2용매를 일정한 유속비로 혼합하면서 수행되는 것인 분석방법.
- 제2항에 있어서,
상기 중수소화 제1용매 및 제2용매는 각각 독립적으로 완전히 중수소로 치환된 톨루엔(perdeuterated toluene; C6D5CD3), 중수소화된 메탄올(deuterated methanol; CD3OD), CH3OD, CH3CH2OD 또는 이들의 혼합물인 것인 분석방법.
- 제2항에 있어서,
상기 제1용매 및 제2용매의 유속은 각각 독립적으로 200 내지 2500 μl/h인 것인 분석방법.
- 제2항에 있어서,
상기 수소/중수소 교환반응은 제1용매와 제2용매를 1:0.25 내지 1:2의 유속비로 혼합하여 수행하는 것인 분석방법.
- 제1항에 있어서,
질소함유 화합물은 일부 수소원자가 중수소화 메탄올에 함유된 중수소원자로 치환되는 것인 분석방법.
- 삭제
- 제1항에 있어서,
화학적 작용기의 구조를 규명하는 것은 질량 분광법에 의해 계산된 질량수(mass number)로부터 화학식(chemical formula)을 유추함으로써 달성되는 것인 분석방법.
- 제1항에 있어서,
상기 질소함유 화합물의 화학적 작용기는 피리딘, 피롤, 일차 아민, 이차 아민, 삼차 아민 또는 이들의 조합인 것인 분석방법.
- 삭제
- 제2항에 있어서,
상기 중수소화 제1용매에 대한 제2용매의 유속이 증가함에 따라 질소함유 화합물의 이온라디칼종에 비해 추가로 중수소화된 이온종의 상대적인 비율이 증가하는 것인 분석방법.
- 제1항에 있어서,
상기 화학적 작용기의 상대 존재비를 규명하는 것인 분석방법.
- 제1항에 있어서,
질소함유 화합물을 포함하는 혼합물은 부식물질(humic substance)을 포함하는 혼합물인 것인 분석방법.
- 제13항에 있어서,
상기 부식물질을 포함하는 혼합물은 원유(crude oil)인 것인 분석방법.
- 제14항에 있어서,
상기 부식물질을 포함하는 혼합물은 원유의 수지 분획(resin fraction)인 것인 분석방법.
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