■ t1/2 1/2 1x decouple Gz 再考虑第二个fid: +21.S,cos()-21.S,sin(s s,-,se→-2l,Ssin(2t)cos(-p(z》+212Scos(2,4)sin(-9s(z》 21S,cos(s )cos(-d())-21.S,sin()sin(-ds () =-2I2Ssin(2s41+中s(z)-2I2S,cos(24+φx(z) ,+2I,8sin(2,4+,(e》21,cos(2,4+.(2刃 +mtt→+1cos(2g4+中，(z》-6we6in2I,S,sin(2g千+9g(z)》 + >-I cos(+())+Even21,S.sin(+()) +t®tr-ee6nl,sin(24+,(z》+6l,cos(2,4+0(z》 →-￡ed1nL:sin(Qs4+p,(z)》-6,l,cos(2,4+ps(z) PEP-HSQC 生物大分子波谱学原理 吴季辉