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Unfortunately, elemental analysis will not yield any information as to the extent of contamination by urea.

不幸的是, 元素分析不能指出这个盐夹杂尿素的程度.

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The structures of are identified by IR, HNMR and elemental analysis.

通过红外光谱 、 核磁共振氢谱、元素分析确证了化合物的结构.

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The optimal oxidation condition was determined by thermal analysis and elemental analysis.

用热分析法和元素分析法,确定了最佳氧化条件.

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Our acclaimed line of elemental analysis products includes mobile, desktop, laboratory and automation models.

这些优秀的元素分析产品有便携式 、 台式 、 实验室和自动化应用等各种型号.

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The structures of these compounds have been determined by elemental analysis, IR spectra, 1 HNMR, 13 CNMR and two - dimensional NMR spectroscopy.

用元素分析 、 红外光谱1、HNMR1 、 3CNMR及多种二维核磁共振谱确定了目标化合物的结构.

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Coke formed on cracking catalysts was investigated by ESR technique and elemental analysis.

本文以元素分析的碳含量为标准,用ESR方法研究了催化裂化催化剂的积炭.

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All these novel macrocyclic compounds were confirmed with elemental analysis, IR, 1 HNMR and MS.

这些新型大环化合物均经元素分析 、 IR 、 1HNMR、MS等证实其结构.

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O, O � � , O � � � � , O � � � � � � . teraaryl Dithioimidophosphinates ｛ [ ( ArO _ 2 ) PS ] NH ｝ were prepared and characterized by elemental analysis, IR, 1 H NMR and MS. [ KH - ? 2 ]

合成了6种O, O′, O′′, O ′′′- 四 芳基双 二 硫代磷 酰亚胺的合成类化合物,产物经元素分析 、 IR, 1HNMR和MS表征.

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The prediction correlation of residues hydrogen content was given in the absence of elemental analysis.

并给出了在缺乏元素分析的条件下,渣油氢含量的预测式.

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The crystal structure of the compound has been determined by elemental analysis and X - ray single - crystal diffraction.

并通过元素分析及X - 射线单晶衍射法,测定了该化合物的晶体结构.

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And its molecular structure is analyzed by elemental analysis, md - tof and X - ray single crystal diffraction.

通过元素分析 、 md-tof、 X 射线单晶衍射分析了此种配合物的分子结构分.

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