放射性磷 - 百度百科
网页符号32p，简写为p。磷32是1935年用镭铍中子源照射 二硫化碳 首次制得的。磷32是纯β衰变核素，β射线的最大能量为1.711兆电子伏。半衰期为14.3天。3.7×10贝可的磷32重3.49×10毫克 [3] 。
BIO 1200 CH 2 Flashcards - Quizlet
网页Phosphorus exists in several isotopes, including 31P and 32P. These are expected to have different _____.
Phosphorus-32 - Wikipedia
网页Phosphorus-32 (32 P) is a radioactive isotope of phosphorus. The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31. Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14 days and so decays rapidly.
Isotopes of phosphorus - Wikipedia
网页Isotopes of phosphorus. Although phosphorus (15 P) has 22 isotopes from 26 P to 47 P, only 31 P is stable; as such, phosphorus is considered a monoisotopic element. The longest-lived radioactive isotopes are 33 P with a half-life of 25.34 days and 32 P with a half-life of 14.268 days. [3][4] All others have half-lives of under 2.5 minutes, most ...
个人经验分享——31P NMR化学位移及相应化合物- X-MOL资讯
网页2017年1月14日 · 31P同位素的自然丰度为100%，具有15个质子和16个中子，31P的自旋量子数为1/2，有相对较强的核磁共振信号，这也为磷化学的研究提供了直接高效的信息。 磷谱的研究范围比我们常见的氢谱和碳谱要大很多，一般从+1000ppm到-1000ppm，其零点的校正一般使用85%的磷酸溶液。 由于磷的氧化态（-3至+5）和配位数（1至6）多变，所以磷类化合物可谓非常复杂。 下面笔者就个人经历简要介绍一些化合物及其对应的31P NMR化 …
网页The proton spectrum for the 31p(d, p)32p reaction is well known up to an excitation energy of 6.8 MeV 5, 6). Also the proton angular distributions are measured previously in the same energy region 5, 7, 8), but with the exception of the investigation by W.C.
Biodegradable polyphosphoester micelles act as both background-free 31P ...
网页2023年7月19日 · We overcome challenges in 31P MRI, including background interference and low sensitivity, by modifying the molecular environment of 31P, assembling polymers into colloids, and tailoring the ...
Reactor production of 32P for medical applications: an ... - Springer
网页2014年3月30日 · The article describes a comparative study carried out on the reactor production of 32P by two different processes, namely, 32S(n,p)32P and 31P(n,γ)32P with a view to determine the merits and bottlenecks of each method and assess the usefulness of 32P obtained from each of the processes.
Phosphorus-31 Magnetic Resonance Spectroscopy
网页31P NMR spectroscopy is a nondestructive technique that exploits the magnetic behavior of P atom and gives rise to distinguishable spectra and position (chemical shift) for different P-containing compounds.
Investigation of the 31P (d, p)32P reaction at Ed = 10 MeV
网页1973年8月6日 · The reaction 31 P (d, p) 32 P has been used to investigate the structure of 32 P. Angular distributions for 22 levels up to and including an excitation energy of 4.16 MeV have been measured with a split-pole magnetic spectrograph at a bombarding energy of 10 MeV. A DWBA analysis yielded ln values and spectroscopic factors.