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geochemical standard samples
相关语句
  地球化学标准物质
     Low Blank Nickel Sullied Fire Assay Preconcentration of Platinum Group Elements in Geochemical Standard Samples for Neutron Activation Analysis
     低空白镍锍试金预富集中子活化分析测定地球化学标准物质中的铂族元素
短句来源
     The method has been tested on geochemical standard samples with satisfactory results.
     经对地球化学标准物质分析,结果与推荐值相符。
短句来源
  “geochemical standard samples”译为未确定词的双语例句
     The method has been tested on 8 geochemical standard samples with 0. 61 ~1. 9μg/g Tl and RSD(n = 5) is 3. 3%~12. 6%,with a recovery of 94%~~105%.
     RSD(n=5)为3.3%~12.6%; 标样加标回收率为94%~105%。
短句来源
     The precision of the method are 1.57%~11.3% RSD(n=12) for these 5(elements). The accuracy of the method has been verified by determination of these 5(elements) in national geochemical standard samples and the results are in agreement with certified values.
     方法精密度(RSD,n=12)为Ag 4.2%~11.3%、B 3.2%~6.5%、Sn 2.6%~7.1%、Mo 2.9%~6.3%、Pb 1.57%~5.18%。
短句来源
  相似匹配句对
     Standard
     标准
短句来源
     Which is the standard?
     采用什么标准评价?
短句来源
     the thermal reservoir temperature is 150℃ estimated by geochemical standard.
     利用地球化学温标估算热储温度150℃左右。
短句来源
     NEW GEOCHEMICAL STANDARD MATERIALS FOR ROCKS AND STREAM SEDIMENTS
     新系列岩石和水系沉积物地球化学标准物质
短句来源
     The method has been tested on geochemical standard samples with satisfactory results.
     经对地球化学标准物质分析,结果与推荐值相符。
短句来源
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  geochemical standard samples
Hydrogen contents in some geochemical standard samples were determined and highly reproducible values were obtained.
      


Four kinds of pyrocoated graphite tubes have been studied in detail by comparison with their memory effect, characteristic integrated amount, detection limit, precision and acid-re-sistance etc. For different graphite tubes the ashing and atomization temperature of Ag, Cd and Be are chosen and its applicability in the determinations is investigated. The results from geochemical standard samples are in agreement with those of certification.

本文详细研究了各种石墨管的测试性能和实际应用,对各种石墨管的记忆效应,灵敏度检测限,精密度和抗酸能力进行了比较,并研究了各种石墨管对银、镉、铍的灰化和原子化温度及在样品分析中的适应性。发现不同元素应选用不同厂家的石墨管是重要的,拟定了加入基体改进剂后的直接测定程序,应用于地球化学标样中痕量银、镉、铍的测定,其结果与可用值相符。本工作对其它元素测定和石墨管种类选择,也具有普遍的借鉴作用。

The determination of trace Br and I in geochemical samples was invea- tigated by spark sourece mass spectrometry. Graphite powder was used as electrode material and Lu as internal standard element. The results were corrected with relative sensitivity factors. A sample of 20mg is only required for the determination of Br and I with concentration as low as 1 ppm. The reliability of this method was verified by tests with more than 10 Chinese geochemical standard samples.

本文研究了用火花源质谱法测定化探样品中的痕量Br和I。用石墨粉作电极(导电材料),Lu为内标元素,用实验测定的相对灵敏度对结果进行了校正。使用20mg样品即可测定含量低至1ppm的Br和I。通过地质标准样品中Br、I的分析证明了该方法可行。

According to some principals,the eleven geochemical standard samples are prepared and recom- madation reference values of 55 elements and oxides are determined.They can meet the requirement of the regional geochemical exploration,environmental geology,agricultural geology and forestry.The examination analysis shows that the samples have wide representatives and well—distributed characters basically reflected practical states.Then,the values are checked and given by means of special treat- ment.The...

According to some principals,the eleven geochemical standard samples are prepared and recom- madation reference values of 55 elements and oxides are determined.They can meet the requirement of the regional geochemical exploration,environmental geology,agricultural geology and forestry.The examination analysis shows that the samples have wide representatives and well—distributed characters basically reflected practical states.Then,the values are checked and given by means of special treat- ment.The values have been used to monitor the measurement quality of about 50,000 samples for 5 years,which confines that they have high accuracy and relieability.

本文叙述了江苏省地球化学标准参考样的研制与定值过程,经检验证明定值数据有代表性、合理、准确。适用于地质、环境、农林等专业测试领域。

 
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