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yaya4910銅蟲(chóng) (小有名氣)
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[交流]
【求助】高分子中MAS-NMR是指固態(tài)核磁吧?
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有一個(gè)朋友是學(xué)高分子的,明天就要測(cè)樣了,因?yàn)槭浅鯇W(xué)者,所以不是很了解這是固態(tài)還是液態(tài)的核磁。雖然看到網(wǎng)上一知半解的講解,但是因?yàn)橐ɡ习宓腻X(qián),所以拜托大家講一下啦 MAS-NMR Spectroscopy: The spectra were obtained at 298 K using a Bruker Avance II 600 spectrometer, with a SB Bruker 4mm MAS double-tuned probe operating at 600.33MHz for 1H and 119.26MHz for29Si and a SB Bruker 3.2mm MAS triple-tuned probe operating at 600.33MHz for1H and 150.97MHz for13C. Chemical shifts are referenced to tetramethylsilane (TMS) using glycine and 4,4-dimethyl-4- silapentane-1-sulfonic acid (DSS) as an intermediate standard for13C and 29Si NMR respectively. [ Last edited by yaya4910 on 2010-10-12 at 23:18 ] |
液質(zhì)核磁 |
鐵桿木蟲(chóng) (職業(yè)作家)

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