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稳定低毒HiCN试剂的研制及应用 被引量:1
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作者 邱烨 沈翠芬 陈振华 《临床检验杂志》 CAS CSCD 北大核心 1998年第5期284-287,共4页
研制一种稳定、低毒的文齐改进液。在文齐液中加入适量的AgNO3和5g/LKNO3,调整KH2PO4的用量为60mg/L,KCN的用量减至30mg/L。结果:有效消除了高球蛋白样品所致的浑浊,加入的AgNO3明显提高了... 研制一种稳定、低毒的文齐改进液。在文齐液中加入适量的AgNO3和5g/LKNO3,调整KH2PO4的用量为60mg/L,KCN的用量减至30mg/L。结果:有效消除了高球蛋白样品所致的浑浊,加入的AgNO3明显提高了HiCN试剂的贮存稳定性,减少了环境污染。此试剂特别适用于高球蛋白样品的测定,同时适用于试剂使用周期长。 展开更多
关键词 HiCN试剂 稳定性 低毒
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Affine Connections and Gauss-Bonnet Theorems in the Heisenberg Group
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作者 WANG Yong 《数学进展》 CSCD 北大核心 2024年第5期1103-1119,共17页
In this paper,we compute sub-Riemannian limits of Gaussian curvature associated to two kinds of Schouten-Van Kampen affine connections and the adapted connection for a Euclidean C2-smooth surface in the Heisenberg gro... In this paper,we compute sub-Riemannian limits of Gaussian curvature associated to two kinds of Schouten-Van Kampen affine connections and the adapted connection for a Euclidean C2-smooth surface in the Heisenberg group away from characteristic points and signed geodesic curvature associated to two kinds of Schouten-Van Kampen affine connections and the adapted connection for Euclidean C2-smooth curves on surfaces.We get Gauss-Bonnet theorems associated to two kinds of Schouten-Van Kampen affine connections in the Heisenberg group. 展开更多
关键词 Schouten-Van kampen affine connection the adapted connection Gauss-Bonnet theorem sub-Riemannian limit Heisenberg group
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