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小木虫论坛-学术科研互动平台 » 文献求助区 » 检索知识 » 文献检索 » 请问文献“CA 50: 697b”含义
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gmway

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[求助] 请问文献“CA 50: 697b”含义

各位大侠好，看了一篇古老的论文，参考文献是CA 50: 697b，查出来是美国化学文摘，但CA之后都是啥意思啊？还有如何查找呢？非常感谢。
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1楼 2013-06-23 17:15:41
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baiyuefei

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非2楼所说的卷和页码的意思
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4楼2013-06-23 17:51:00
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wangzhipengj

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★ ★ ★ ★ ★ ★
yaolan123: 金币+1, 感谢参与，奖励一下~ 2013-06-23 21:27:45
gmway(oven1986代发): 金币+5, 代扣结帖。 2013-07-17 12:33:45
50应该是卷号，697b应该是起始页码
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2楼2013-06-23 17:37:31
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baiyuefei

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yaolan123: 金币+2, 感谢应助，奖励一下 2013-06-23 21:27:55
oven1986: 检索EPI+1, 感谢应助。 2013-08-16 11:06:15
用网络版的CA查询即可，就可得知具体是什么文献的，查询结果如下，1或2，不知哪个是你需要的，自己选择下吧
1.
A rapid determination of total pinenes in a mixture of terpenes
By: Bardyshev, I. I.; Chernyaeva, O. I.; Litvinova, A. N.

The method is based on changes of temp. owing to the isomerization, polymerization, and partial esterification of α- and β-pinenes (I) with AcOH and H2SO4 under standardized exptl. conditions avoiding the reaction of other turpentine constituents.  The app. consisted of a thermostat, a Dewar flask, two 10-cc. pipets (with siphoned lower parts which made it possible to keep them inserted in the thermostat), two thermometers (one inside the Dewar flask, the other outside), and a hand stirrer.  The temp. was kept at 25 ± 0.1°.  The reagent was prepd. by mixing 100% AcOH and 50% H2SO4 in vol. proportions 10:1.  α-Pinene (b. 155-6°, nD20 1.4653-1.4656, d420 0.8578-0.8582) was used as the standard.  A plot of the temp. differences, Δt, against the contents of α-pinene in the mixt. gave a straight line.  Since at low concns. of I it took around 30 min. to reach the max. temp. a mixt. of pure α-pinene and the substance being analyzed was prepd. in the ratio 1:1.  The amt. of I in this case was calcd.: x = 2 (a - 50), where a represented α-pinene in the mixt.  In the presence of larger quantities of β-pinene 1.5% was subtracted from a.  Smaller quantities of camphene did not interfere.  This method is superior to the fractionation method.

Gidroliznaya i Lesokhimicheskaya Promyshlennost
Volume8
IssueNo. 2
Pages15-17
Journal
1955
CODEN:GLKPA2
ISSN:0016-9706



2.  Mixed (lichenoid and macular) cutaneous amyloidoses
Toribio J; Quinones P A; Virgil T R; Santa-Cruz C S

Between October 1972 and Paril 1974 a total of four patients suffering from lichen amyloidosus were admitted to the wards of the Department of Dermatology, University Hospital, Valladolid.  All these patients also showed a macular amyloidosis associated with the lichenoid eruption.  The authors emphasize that macular amyloidosis is quite commonly found as an associated and closely related condition in lichen amyloidosus.

Acta dermato-venereologica
Volume55
Issue3
Pages221-6
Journal; Article; (JOURNAL ARTICLE)
1975
ISSN:0001-5555
Journal Code:0370310
Sweden
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3楼2013-06-23 17:49:54
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gmway

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引用回帖:
3楼: Originally posted by baiyuefei at 2013-06-23 17:49:54
用网络版的CA查询即可，就可得知具体是什么文献的，查询结果如下，1或2，不知哪个是你需要的，自己选择下吧
1.
A rapid determination of total pinenes in a mixture of terpenes
By: Bardyshev, I. I.; Chern ...

多谢啊，呵呵
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5楼2013-08-16 08:45:12
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