ICP-MS法检测种植中药材中的无机溴化物含量

为建立电感耦合等离子体质谱仪（ICP-MS）检测人工种植中药中无机溴化物的分析方法,根据溴的特性确认ICP-MS测量质量数并考察了中药样品的提取方式、提取溶剂、提取时间对无机溴化物测试结果的影响。结果表明,中药样品中无机溴化物适宜的测试条件为：样品经粉碎后采用蒸馏水为提取溶剂超声提取溴化物,并用ICP-MS进行检测,内标法定量。此条件下无机溴化物质量浓度在0～0.20μg/mL范围内具有良好的线性（R2>0.999）,加标回收率为109.9%～121.3%,相对标准偏差为1.8%(n=6),中间精密度为2.7%(n=12),方法检出限为1μg/g,定量限为2μg/g。该方法可用于中药无机溴化物的检测,其操作简单、灵敏度高。     

新疆中草药的产业优势与发展策略

中草药作为朝阳产业,在世界各地发展很快.新疆辽阔的地域,复杂的气候因素和丰富的资源,为中草药的产业化、区域化发展提供了有利条件.中草药的应用十分广泛,有着非常广阔的市场前景.如何抓住机遇,促进新疆中草药的区域化发展是首要任务.但是,令人担忧的是,野生中草药资源正在遭受着严重的破坏,人工生产的水平又很低下,中药材市场很不规范,在众多的问题下如何发展新疆中草药,是一个值得深思的问题.     

Contribution to the knowledge of the folk plant medicine in Calabria region (Southern Italy)

A series of research on plants used in Calabria (Southern Italy) in the folk plant medicine was carried out in the last twenty years. The use of 104 taxa distributed into 42 families are described. Among the major findings: Ceterach officinarum as hypotensive; Heliotropium europaeum in the case of urinary inflammations; Silybum marianum for haemorrhoids; Arundo donax for pertussis and cystitis; Allium cepa for sties and flu; Laurus nobilis as galactagogue; Passiflora incarnata for burns, haemorrhoids and skin inflammations; Scrophularia canina for rhagas and wounds; Urtica membranacea for tussis and tonsillitis.     

论古典园林植物造景中的审美观

园林作为一门艺术,它的形成和发展具有一定的历史文化背景,带有很深的时代烙印,要受一定审美观念的影响和支配。笔者以此为切入点,从传统文化哲学、民族审美心理和思维方式三方面,提出古典园林植物造景中折射出的自然审美观和生态审美观,以便更好的认识艺术活动的奥秘和规律,理解审美文化,为创造新的具有现代意义的植物景观提供历史借鉴。     

桂皮型中草药添加剂对贵妃鸡生长性能及内脏器官发育的影响

为了探讨桂皮型中草药添加剂(桂皮、小茴香、陈皮等)对贵妃鸡生长性能及内脏器官发育的影响,选用21日龄的贵妃鸡180只,随机分成四个组,每组45只.对照组(A组)饲喂基础日粮,试验组饲喂在基础日粮内添加0.5%、1%、2%(分别为B、C、D组)桂皮型中草药的日粮.试验期70d(21～90日龄).并在试验结束时每组随机抽取24只鸡(12公、12母)进行屠宰试验,测定其心脏重、肝脏重、脾脏重并计算其器官指数.结果表明:在21～90日龄贵妃鸡日粮中添加0.5%、1%、2%的桂皮型中草药不影响其日增重和饲料利用率(P>0.05).对贵妃鸡肝脏、心脏、脾脏重量及其器官指数均无明显影响(P>0.05),但添加不同比例的中草药有改善以上指标的趋势,以添加0.5%最佳.因此,贵妃鸡日粮中桂皮型中草药添加剂的适宜添加量为0.5%.     

Effects of 105 traditional Chinese medicines on the detection of β-agonists in medicine extracts and swine urine based on colloidal gold immunochromatographic assay

Colloidal gold immunochromatographic assay(CGIA) is commonly used for the on-site detection of β-agonists that are sometimes used illegally as feed additives in swine diets. However, few studies have evaluated the causes of false-positive results that sometimes occur when applying CGIA in agricultural settings. In this study, we investigated if this false-positive phenomenon is related to the addition of certain traditional Chinese medicines(TCMs) to swine feed. We established and verified an extraction method for TCMs, and then applied CGIA to detect β-agonists in the extracts of 105 TCMs and in the urine of swine dosed with TCMs, respectively. Liquid chromatography-tandem mass spectrometry was used to validate the results of the urine samples tested positive for β-agonists using CGIA. The results were also verified using TCMs and colloidal gold test strips produced by different manufacturers. The extracts of Citri Reticulatae Pericarpium Viride, Citri Reticulatae Pericarpium, Magnoliae Officinalis Cortex, Chaenomelis Fructus, and Rhodiolae Crenulatae Radix Et Rhizoma were tested positive for β-agonists. Meanwhile, the addition of Citri Reticulatae Pericarpium Viride and Citri Reticulatae Pericarpium to swine feed resulted in false-positive results for β-agonists in swine urine. The results provide a new way to explain false-positive CGIA results and provide valuable information for livestock feeding programs.     

微课程应用于高校分子生物学教学的思考

微课是随着信息技术的发展兴起的一种新的教育模式,它具有短小精悍的特征。分子生物学作为生物学的前沿学科之一,在生命科学等领域具有举足轻重的地位。因其内容广泛,概念抽象复杂,为高校师生的教与学带来了一定压力。笔者结合分子生物学课程自身特点以及对微课的认识,探究将微课引入分子生物学课堂教学的可行性和必要性。在提升教师的教学质量的同时,提高学生学习该课程的兴趣以及对知识的理解力和掌握度。     

云南红河哈尼梯田区域传统蓄力犁研究

云南红河哈尼梯田传统蓄力犁是哈尼梯田文化中的重要内容,是农耕文化的代表.从云南红河哈尼梯田区域传统农具发展历史、类型、结构特点、力学性能和工作特性上进行研究,从结构上了解和研究了犁的特点,对哈尼族传统蓄力犁的保护有重要意义.同时,对哈尼梯田传统蓄力犁的研究有助于保护珍贵的文化遗产.     

谐音寓意,吉祥止止——中国传统建筑文化中谐音象征特征刍议

文章以"蝠"谐"福"现象为例分析了谐音文化现象在中国传统建筑设计和装饰中的运用,指出谐音装饰具有运用普遍、造型美观、装饰与功能相结合三个特征,揭示了谐音寓意是中国传统建筑文化的重要特色之一。