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1、天然金珍珠与天然黑珍珠由于产量稀少,W此造成了市场价格居高不下的结果。但人们对美观的天然金珍珠与天然黑珍珠的追求尤法改变,聪明的商人就做出了天然金珍珠与天然黑珍珠的代用品,通过对天然珍珠进行改色处理,以达到与天然珍珠相仿的外观,以满足人们的追求。但部分不法商人却用来牟取暴利,为了减少这种损密消费者的权益的事情发生,需要对珍珠进行鉴定。本文对•人然珍珠和经过颜色加下处理的金色珍珠(染色金珍珠)和黑色珍珠(染色黑珍珠)进行了检测和分析。放人观察下,天然珍珠的表面比较光滑,颜色均匀分布,染色金珠与染色
2、m珍珠表面损伤严逛,部分区域由于m痕而造成了颜色富集。紫外荧光灯卜,经染色处理的金珍珠以及黑珍珠的荧光均出现减弱》x射线荧光光谱仪屮,染色黑珍珠的银元素舍量超过正常值,而染色金珍珠的镭元索含蹇也超过了正常值根据放人检测.拉曼光谱与红外光谱以及x射线荧光光谱仪的区别,能够有效地进行快速无损鉴定,以匕分染色黑珍珠、染色金珍珠与天然珍珠。关键词:染色黑珍珠;染色金珍珠:放人观察:紫外荧光灯;x射线荧光光谱;红外光谱AbstractNaturalGoldenPearlandBlackPearldueto
3、theproductionofnaturalscarcity,thuscausingtheresultsofthehighmarketprices.Butpeopleonthebeautifulnaturalgoldenpearlandblackpearlnaturalpursuitcannotbechanged,thenmadeasmartbusinessmannaturalgoldenpearlandblackpearlnaturalsubstitutesfornaturalpearlsby
4、colorchange,soastoachievethenaturalpearlofsimilarappearance,inordertomeetpeople'spursuit・However,someunscrupuloustraderstomakehugeprofits,but,inordertoreducethisharmtheinterestsofconsumerstohappen,theneedforpearlidentification.Inthispaper,afterthecol
5、orofnaturalpearlsandgoldenpearlsprocessed(dyedgoldenpearl)andBlackPearl(dyedblackpearl)weretestedandanalyzed.Magnificationobservation,thenaturalsurfacesmooth,uniformcolordistribution,severelystainedanddyedblackpearlKimsurfacedamage,textureclear,local
6、colorenrichment.Ultravioletlluorescent,goldenpearlandblackpearlbyfluorescentstaininghandlebothhadweakened・X-rayfluoresceneespectrometer,silverstainingoftheBlackPearlelementcontentthannormal,whilethemanganesecontentisalsodyedgoldenpearlthannormal.Acco
7、rdingtoamplifythedetection,Ramanspectroscopy,infraredspectroscopyandthediffereneebetweenX-rayfluorescencespectrometerwithafast,non-destructiveandeffectivelyidentifydistinguishstainedblackpearls,naturalpearlsanddyedgoldenpearls.Keywords:dyedgoldenpear
8、l;dyedblackpearl;Ultravioletfluorescent:X-rayfluorescencespectrometry;InfraredSpectroscopymgiAbstractIIAA[1.1选题依据及意义11.2研究现状及存在问题11.3研究思路与方案11.4工作计划安排与拟完成的工作量2第二章珍珠概述32.1珍珠的基本性质32.2珍珠的分类及发展历史5221倾52.2.2发展历史52.3本章小结8第三章珍珠的优化处理方法93.1珍珠优化方法93.2珍珠处理方法103