原子吸收分光光度法测定人发中的微量锰

本文叙述了采用浓硝酸－高氯酸湿法消化人发样品，原子吸收分光光度法测定样品中的微量锰的方法．该方法简便快速、灵敏可靠．用本法测定了上海地区发样中锰的含量，其发中锰的平均含量为３．３０×１０－６ｇ／ｇ．此法的检测极限为０．０１×１０－３ｇ／Ｌ，相对标准偏差为２．４４％．结果较为满意．     

流动注射氢化发生电感耦合等离子体原子发射光谱测定人发样品中痕量硒

采用流动注射氢化发生法与电感耦合等离子体原子发射光谱联用测定了人发中的痕量硒，对样品的预处理、氢化物发生及流动注射等系统的工作条件进行了优化，Ｓｅ的检出限可达０．０６μｇ／Ｌ，用所建立方法测定了国家一级标准物质人发，测得值与标准值相吻合．     

几种灵长类毛发的亚显微结构比较研究

根据毛小皮形态、毛发髓部结构和色素颗粒分布等综合性特征,对几种代表性的灵长类动物(白眉长臂猿、猕猴、短尾猴、黑猩猩)和现代人的头发进行了亚显微结构的比较研究,发现现代人头发和其它灵长类毛发的亚显微结构存在明显不同的特点,而各科灵长类之间又有程度不同的差异,因此,它可以作为灵长类代表性种属鉴别有意义的参考依据。     

几种“奇异动物”毛发的亚显微结构比较研究

本文用透射电镜和扫描电镜对四川巫溪县靠近神农架等地的“奇异动物”毛发和现代人及其它灵长类、哺乳类毛发进行了亚显微结构比较研究。发现待检一组(取材于四川巫溪县)毛发的毛小皮鳞片、髓部结构和皮质内色素粒分布等特点都与白眉长臂猿、猕猴、苏门羚羊等动物毛发有较大差异,而与现代人头发结构比较相近,但又不尽相同,它有可能属于一种未查明的高级灵长类,因此建议今后可在该类地区进行重点探查。     

几种“奇异动物”毛发的亚显微结构比较研究

本文用透射电镜和扫描电镜对四川巫溪县靠近神农架等地的“奇异动物”毛发和现代人及其它灵长类、哺乳类毛发进行了亚显微结构比较研究。发现待检一组(取材于四川巫溪县)毛发的毛小皮鳞片、髓部结构和皮质内色素粒分布等特点都与白眉长臂猿、猕猴、苏门羚羊等动物毛发有较大差异,而与现代人头发结构比较相近,但又不尽相同,它有可能属于一种未查明的高级灵长类,因此建议今后可在该类地区进行重点探查。     

放射免疫测定毛发中激素含量作为研究动物内分泌生理方法的初步研究

本文应用放射免疫分析法测定日本大耳白兔和狗毛中孕酮和雌二醇的含量,结果表明:取200mg毛样加入4ml石油醚对孕酮进行提取,毛样提取液为0.01～ 0.50ml时,孕酮含量呈对数相关;而在0.01～0.20ml时,孕酮含量基本上呈线性相关.兔子腹部乳头周围毛样的孕酮含量显著高于背部毛样.注射外源性孕酮后,毛中孕酮的峰值出现较血浆中晚12h左右.毛样在18℃室温下保存10天对孕酮含量无影响.     

用高分辨率双晶X射线荧光法测定头发中硫的状态

本文用高分辨率双晶X射线荧光法研究了各种含硫化合物的SKα线的位移,并测定了中国人和日本人头发中硫的存在状态及各种状态的含量。结果表明,头发中硫主要以S~(2-)状态存在(平均占95.4%),其余是S~(6+)。发现男人头发中总硫量及S~(2-)状态的硫比同一国籍的女人高。还对12人的黑发与白发进行了对照分析,发现黑发中S~(2-)的含量明显高于白发,而S~(6+)低于白发。这可能由于随着头发变白,其中含—S—S—基团的蛋白质减少的缘故。     

REDUCING HAIRFALLING AND PILLING STUDY IN RABBIT HAIR/WOOL WORSTED KNITWEAR——CHOOSING AND EVALUATING OF FINISHING AGENT

In the paper, the effects of reducing hairfalling and pilling were compared in rabbit hair/woolworsted knitwear by adding various finishing agents. Reducing rates of hairfalling and pilling wereof 6.7％—66.7％ and 9.3％—73.5％ respectively, while fabric handle changed from grade 1 to grade5 in 12 treating method groups. To evaluate the severity of hairfalling and pilling and the conditionof fabric handle of knitwear objectively, quantitatively and comprehensively, we advocated usingthe concept of "geueral evaluating value(GEV)". The results indicated that GEVs of acrylategroups were low, but GEVs of silicone resin groups were high, especially the group with finishingagent solution containing 7％ silicone resin No.3 in which reducing rates of pilling and hairfallingwere of 53％ (National standard: grade 4.5) and 62％, respectively, and washing stability was verygood, while knitwear's fabric handle almost did not change.     

金银花新品系与主栽品种的表皮毛、叶色素及光合速率的比较分析

对金银花新品系与主栽品种的叶、茎、花蕾表面腺毛、非腺毛的密度、长度进行观察和分析,并测定其叶的叶绿素、花青素含量和光合速率,为良种的鉴别和鉴定提供依据.结果表明,豫金1号的表皮毛长度、密度均高于对照,豫金2号表皮毛除叶下表面非腺毛长度低于对照亚特红蕾1号,其他均高于对照;豫金1号、豫金2号的叶绿素含量和光合速率分别较对照高,说明在一定范围内,叶片的光合速率随叶绿素含量的增加而提高,叶片花青素含量与光合速率的相关系数达到显著水平(P0.05),花青素含量与光合速率之间呈负相关.结论:表皮毛的长度、密度等可作为金银花新品种鉴别指标的依据.     

Trace element characteristics of a Gorham-Stout Syndrome sufferer

Gorham-Stout Syndrome （GSS） is an infrequent and mysterious bone disease characterized by massive bone dissolving or even disappearing due to an unknown pathogeny. It is quite different from the Itai-itai disease and osteoporosis. In 2001, an 8-year-old boy from a small town in Xinjiang was found to get GSS disease. Some parts of his bones vanished without any external force. Results showed that the concentrations of Cd and Cu, especially Na and K in his hair were far higher than those of the healthy people, and the concentration of Cd was 2 times that of the reference while those of Cr and Zn were insufficient for health. The ratio of K/Na was also higher than that of healthy group. Four different ratios revealed weak bone growth potential and strong bone breakage occurred simultaneously in the GSS sufferer＇s skeletal system. It might be the synergistic effect of the trace elements leading to the baffling syndrome. Further investigation demonstrated that the trace elements can cause a series of diseases, including GSS disease and a typical rheumatoid arthritis （ARA）. Epidemiological investigation also proved that there were about 25% of the inhabitants in the town suffered from an ARA. All of these data implied there was significant relationship among Gorham-Stout Syndrome, ARA and prolapse of lumbar intervertebral disc.