<正> 谷电流判别型隧道二极管对比较器具有判别灵敏度高、速度快、稳定性好等优点。对一次群的转换速度,经过仔细调整,其判别灵敏度可达1—2微安以内。经实验证明,该电路工作性能稳定可靠,且对隧道二极管对的一致性要求并不严格,调换隧道二极管后,其工作点可不必调整。
doaj
[Diagnostic value and clinical significance of matrix metalloproteinase-7, gamma-glutamate transferase, and liver stiffness measurement with ultrasound elastography in children with biliary atresia]. [PDF]
Zhang JM +8 more
europepmc +1 more source
[Determination of 31 perfluoroalkyl and polyfluoroalkyl substances in water by ultra performance liquid chromatography-triple quadrupole mass spectrometry combined with direct injection]. [PDF]
Yang C +6 more
europepmc +1 more source
[Nanomaterial-driven Lateral Flow Immunoassay: Technological Development and Application]. [PDF]
Zheng J, Hu X, Gu B.
europepmc +1 more source
发展基于衍生和富集策略的蛋白质/多肽高灵敏检测技术对于深入开展蛋白质组学研究具有重要意义。本论文发展了多种荧光标记、化学衍生和样品富集新方法,并用于实现蛋白质/多肽的高灵敏检测。 发展了水溶性磺酸-3-氢-吲哚菁染料(sb-cy3-NHS),并实现了低浓度蛋白质的荧光衍生。在优化的衍生条件下,可将牛血清白蛋白(BSA)的检测限降低到12.8 nM;比直接紫外检测和商品化的苯异硫氰酸酯标记后荧光检测的检测限降低了约100 倍。此外,还将该染料用于卵清提取蛋白分析,实现了低浓度蛋白质的有效标记和高灵敏检测 ...
乔晓强
core
[Research progress on the acquisition technology of magnetocardiography]. [PDF]
Kang B +5 more
europepmc +1 more source
[Simultaneous determination of glycerol, acetic acid, and sodium bisulfite in compound amino acid injection (14AA) using ion exclusion chromatography]. [PDF]
Gu YS, Zuo LM, Gao XL, Shan GZ, Zhao J.
europepmc +1 more source
[Polydimethylsiloxane microfluidic aptasensor: opening a new era of biomarker point-of-care testing]. [PDF]
Yang Y +5 more
europepmc +1 more source
[Value of direct immunofluorescence in the diagnosis of oral mucosal pemphigus vulgaris: A retrospective study based on multi-index combined analysis]. [PDF]
Chi Y, Jiang H, Chen Y, Xu Z, Li B.
europepmc +1 more source
[Multicenter prospective study on the diagnostic value of syndecan-1 for necrotizing enterocolitis in preterm infants]. [PDF]
Yin XY, Zhao ZH, Wang Y, Cai N, Chen S.
europepmc +1 more source

