样品鉴定

The applicability of ESI-MS is further extended for characterization and adulteration detection of edible oil and fat products.

关於ESI-MS的应用还更进一步延伸到食用油脂样品的判别与掺假鉴定。

In an attempt to provide a better understanding of the diversity, evolution and spread of geminiviruses in China, 32 samples showing typical geminivirus symptoms were collected from papaya, tomato, tobacco, Euphorbia pulcherrima, Sonchus oleraceus Linn and Ageratum conyzoides in Guangxi province.

为了明确双生病毒的发生、分布与传播，我们从广西番木瓜、番茄、烟草、一品红、苦苣菜及胜红蓟上采集了32个具有双生病毒典型症状的样品并对病毒进行了分子检测与鉴定。

These methods were used to purify and identify 214 positive samples of avian influenza viruses.

用建立的方法对214份禽流感病毒阳性样品进行了纯化和鉴定。

It has many advantages such as speediness, briefness, reliable results, little sample used and that can be reclaimed etc.

红外光谱法是研究泌尿系结石的一种较理想的常用方法，具有快速、简便、鉴定成分准确、使用样品少、可以回收等优点。

Totally,four AMF species(Glomus mosseae,G.hoi,G.sp.1 and G.sp.2)were identifiedfrom 49 farmland soil samples.G.sp.1 and G.hoi mostly distributed in Grey Luvisol;G.mosseae mostly in Dark-Brown Chernozem;G.sp.2 mostly in Dark-Grey Chernozem.

从49个农田土壤样品中鉴定出何氏球囊霉、摩西球囊霉、Glomus sp.1和G.sp.24种VA菌根真菌。G.sp.1和何氏球囊霉主要分布于灰色淋溶土中；摩西球囊霉主要分布于暗棕钙土中；G.sp.2主要分布于灰漠钙土中。

Of 685 meteorites published in the Meteoritical Bulletin Database,there are 2 martian meteorites,2 eucrites,6 ureilites,5 mesosiderites,1 pallasite,1 iron,and 10 carbonaceous chondrites.

在正式公布的684块已分类陨石中，鉴定出2块火星陨石、2块灶神星陨石、6块橄辉无球粒陨石、5块中铁陨石、1块橄榄陨铁、1块铁陨石以及10块碳质球粒陨石等特殊样品，并对其中的部分样品开展了深入的研究。

Methods The method of sucrose gradient centrifugation was used to purify Human herpesvirus-6B(HHV-6B); and in order to make sure the range of positive samples collection, the viron was detected by the methods of PCR, Dot blotting, Western blotting.

采用蔗糖密度梯度离心法进行病毒纯化；通过PCR法、斑点杂交法、蛋白免疫印迹法对纯化样品中HHV-6B进行鉴定，以确定收集阳性样品的范围。

B. tabaci samples from 27 different areas, 14 provinces were collected, and the biotypes of the samples were identified by a RAPD-PCR method.

收集了国内14个省市25个地区的烟粉虱种群的样品，抽提到各个样品的DNA，并以DNA为模板，H〓为引物，对各个烟粉虱种群进行了RAPD-PCR分析和生物型鉴定。

Chemical and microbiological compositions of 12 samples of traditionally home-made koumiss in Xingjiang Uighur Autonomous Region were determined. The average contents of fat, protein, lactose, ash, calcium and phosphorus were 2.07g/100mL, 2.22g/100mL, 3.03g/100mL, 0.28g/100mL, 82.27mg/100mL and 58.20mg/100mL respectively. On average, pH was 3.90, titratableacidity was 134.25°T, lactic acid content was 10.99g/L, acetic acid content was 1.50g/L, citric acid content was 0.09g/L, ethanol content was 14.94g/L. The counts of lactic bacteria in 10 samples were 1.07～9.70×107cfu/mL, 1 sample was 1.38×108cfu/mL, another sample was 2.06×106cfu/mL; the counts of yeast in 1 samples was 3.20×104cfu/mL, 5 samples were 1.80～6.60×105cfu/mL, and 6 samples were 1.06～2.72×106cfu/mL. 33 strains isolated from 12 samples of traditionally home-made koumiss collected from Xingjiang Uighur Autonomous region belonged to Lactobacillus.

本项研究，对采集于新疆伊犁哈萨克族自治州、博尔塔拉蒙古族自治州和巴音郭愣蒙古族自治州 3 个地区的 12 份酸马奶样品，进行了化学和微生物组成分析，并对从中分离到的 33 株杆菌分离株，进行了属种鉴定，同时还对耐酸性菌株进行了初步筛选，结果表明： 12 份酸马奶样品的脂肪平均含量为 2.07g/100mL ，蛋白质平均含量为2.22g/100mL，乳糖平均含量为 3.03g/100mL，灰分平均含量为 0.28g/100mL，钙平均含量为 82.27mg/100mL，磷平均含量为 58.20mg/100mL；pH 值平均为 3.90，酸度平均为 134.25oT，乳酸平均含量为 10.99g/L，乙酸平均含量为 1.50g/L，4 份未检出，8 份柠檬酸平均含量为 0.09g/L，乙醇平均含量为 14.94g/l；1 份乳酸菌数为1.38×108cfu/mL，1 份为 2.06×106cfu/mL，其余 8 份在 1.07～9.70×107cfu/mL 间；1份酵母菌数为 3.20×104cfu/mL，5 份在 1.80～6.60×105cfu/mL 间，6 份在 1.06～2.72×106 cfu/mL 间。

Total RNA was isolated from phloem of young shoots and retro-transcripted to cDNA by RT-PCR with specific primers, and the amplified cDNA fragments were sequenced for identification of subtypes. An effective RT-PCR technique was established for detecting citrus viroid types, and three types were recognized, i.e.

以田间柑橘枝条韧皮部为试材，提取总RNA，反转录成cDNA，再用不同类型类病毒的特异引物进行PCR扩增，鉴定出各个样品所携带的柑橘类病毒类型；通过测序分析各类型的序列，并与国内外报道的序列进行同源性分析，确定所测样品的亚型。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。