JP2020514744A - 不溶性顔料化合物の定性分析方法 - Google Patents
不溶性顔料化合物の定性分析方法 Download PDFInfo
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Abstract
Description
2.1.使用機器:LTQ Orbitrap Elite MS及びMALDI−TOF MS
有機溶媒:THF
イオン化法:APCI positive
カラム:Capcellpak C18(4.6mm IDx50mm Lx3μm)
A:ACN/TFA 100/0.1 B:H2O/TFA 100/0.01
−カラム温度:40℃
B582試料1mg及びマトリックス(DCTB)9mgを乳鉢に入れ、磨いてプレートに固体状態でつけて分析サンプルを製造した(Solvent free法)。
Method:RP_12kDa(Reflector、positive)
B582試料を固体状態のそのままMALD−TOF MSで分析した分子量の結果を図1に示した。前記MALD−TOF MS測定結果、分子量448の単一物質が検出され、THFに溶ける成分をLC/MSで分析した結果、分子量319の物質が検出された。前記分子量319の物質は、ブラック顔料試料で分けられた化合物と推定され、分子量448の物質及び分子量319の物質の推定構造は、次の通りである:
[顔料推定構造]
Branson社の5810モデルを使用して、常温で40kHzの超音波を12時間印加した。
Red264[3,6−ジ([1,1'−ビフェニル]−4−イル)−2,5−ジヒドロピロロ[3,4−c]ピロール−1,4−ジオン]であって、主に携帯電話の外装材用顔料として使われ、構造は、次の通りである:
[顔料Red264の代表構造]
Red264試料2mgをMALDIターゲットプレート(target plate)上にヘラ(spatula)でつけて載せた。ターゲットプレート上に載せた前記試料上にN2ガスを流して塊固体を除去した。
3.1.MALDI−TOF/TOF MS分析条件
3.1.1.FlexControl methodとしてLIFT.lftを使用した
Reflectron Positive Mode
Ion Source 1:7.50kV
Ion Source 2:6.75kV
Lens:3.50kV
Reflector:29.50kV
Reflector 2:14.00kV
Pulsed Ion extraction:80ns
LIFT 1:19.00kV
LIFT 2:3.40kV
レーザ強度:レーザ50%(1000Hz)、2500shots
Smartbeam parameter set:3_medium
CID OFF mode
ペアレントマス:m/z 441
前記分析条件で機器を稼動して、機器作動SOP[SOP−0494−0k(Bruker MALDI−TOF/TOF(UltrafleXtreme)の標準作動手続書)とSOP−0496−0k(Bruker MALDI−TOF/TOF(UltrafleXtreme)を活用したMS/MS標準作動手続書)]との手順に従って試料サンプルを分析した。
[レーザフラグメント化された構造]
Py−GC/MSを用いてRed264の構造を分析した。分析結果を下記の表及び図9A及び図9Bに示した。
Claims (5)
- (1)不溶性顔料化合物の分子量を、MSを使用して確認する段階と、
(2)前記不溶性顔料化合物を溶媒に溶解させた後、超音波処理で分解させて得られた部分構造化合物をLC/MS及びNMRで分析する段階と、を含むか、または、
(1)不溶性顔料化合物に対してMALDI−TOF MSでペアレントマスを選別する段階と、
(2)前記ペアレントマスのピークに該当する化合物に対してのみレーザを印加して、前記化合物をフラグメント化した後、各フラグメントイオンをMSで検出する段階と、を含む不溶性顔料化合物の定性分析方法。 - 前記不溶性顔料化合物が、ビスオキソジヒドロインドリレンベンゾジフラノン系誘導体またはジケトピロロピロール系である請求項1に記載の不溶性顔料化合物の定性分析方法。
- 前記溶媒が、THFまたはCHCl3である請求項1または2に記載の不溶性顔料化合物の定性分析方法。
- 前記超音波処理は、40kHzの超音波を1〜24時間印加する請求項1から3のいずれか一項に記載の不溶性顔料化合物の定性分析方法。
- 前記レーザの照射は、N2レーザを使用する場合、20Hzのスピードでレーザ減衰器68%を保持した状態で20%のレーザ強度で照射されて、600shotsを累積するものであるか、スマートビームレーザパラメータセッティングを3_mediumとし、1000Hzのスピードで50%のレーザ強度で照射されて、2500shotsを累積するものである請求項1から4のいずれか一項に記載の不溶性顔料化合物の定性分析方法。
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PCT/KR2018/001328 WO2019035521A1 (ko) | 2017-08-17 | 2018-01-31 | 불용성 안료 화합물의 정성분석방법 |
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KR20190019436A (ko) | 2019-02-27 |
JP6923168B2 (ja) | 2021-08-18 |
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