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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Plasma treatment of natural magnesite made it possible to obtain a material corresponding to grade-2 electrical-engineering periclase with respect to chemical composition; however, its loss on ignition was found to be high (0.5%).
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Strongly serpentinized Nizhne-Tagil'sk dunite (loss on ignition more than 15%) has a high shrinkage during firing, and therefore in the unfired form is unsuitable for producing forsterite products.
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The areas with a larger clay content had larger values of mineral N, potentially available N, loss on ignition and gravimetric water content, and the converse was true for the areas with more sandy soil.
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Redox potential (Eh), pH, humidity and organic matter content measured as a loss on ignition were determined in bottom sediments from these regions.
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Grain size distribution, porosity, and total organic carbon content as measured by loss on ignition were also determined.
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| | n the basis of the theoretical alpha coefficient correction for the matrix effect,a softwarewas developed in which an empirical coefficients method was incorporated to permit correction forthe dilution ratio and loss on ignition, in case the fusion beads method has been applied in the XRF analysis. The experimental results obtained in the analysis of reference samples were ingood agreement with the certified values. | | 介绍了熔融制样-X射线荧光光谱分析中,在采用理论α系数校正基体效应的基础上,提出经验系数法校正稀释率和烧失量,并编制了联机(或脱机)软件。经标样测定,结果吻合较好。 | | 文摘来源 | | Determination of loss on ignition in dolomite, limestone, clay and high purity magnetite grit by gravimetry after microwave heating is reported in this paper. The optimized operating parameters are 10~15 min for temperature rising time and 15 min for holding time with advantages of time saving and less electricity consuming compared with muffle furnace method. The method has been applied to the determination of loss on ignition in standard samples and the results are ... | | 采用微波加热灼烧重量法测定白云石、石灰石、粘土及高纯镁砂的烧失量 ,升温时间1 0~ 1 5min ,保温时间 1 5min ,较常用马弗炉灼烧省时节电。方法经部级标样分析验证 ,结果与标准值相符 ,5次测定的RSD≤ 0 .1 3 %。 | | 文摘来源 | | Geochemical standard reference samples of GSD-9 and GSD-12 of the drainage sediment were used to evaluate analytical errors of loss on ignition (LOI) and non-residual Fe and P contents after ignition procedure. Locations of the samples in muffle furnace significantly affected the measured values of LOI, Fe, P, and Fe∶P ratio. The place near the furnace door and the two inner corners of the furnace were not suitable to place the sample, which may result in the large analytical errors.... | | 利用水系沉积物标准参考样GSD 9和GSD 12,研究了550℃灼烧对测定沉积物样品的烧失量、非残渣态Fe、P提取效率等结果的影响。结果表明,马弗炉高温室中样品位置的不同,能显著影响测定结果;为减小位置引起的分析误差,样品应尽量避免放置在靠近炉门及马弗炉最内侧的两个角落处。灼烧时间对沉积物LOI、非残渣态P、Fe∶P比的测定也都有影响;在同时测定3项指标时,采用5h的灼烧时间比较合适。 | | 文摘来源 | |   |
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