Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Hwa‐Sheng Cheng"'
Autor:
Chung-Ming Tsai, Tai‐Sung Hsi, Teh-Hsien Lin, Wu-Hsiung Ho, Jen-Fon Jen, Shiuh-Jen Jian, Siu-Mei Ho, Chia-Feng Hsieh, Mo-Hsiung Yang, Tsu-Yen Chang, Hwa-Sheng Cheng, Su-Cheng Pai, Kuang-Lu Cheng
Publikováno v:
Journal of the Chinese Chemical Society. 43:237-245
The results of a series of inter-laboratory cross-check on the determinations of ppb and sub-ppb levels of copper and lead in environmental samples are described. Thirteen laboratories participated during a five-stage comparison. Seven analytical met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbfc836e875720d029d6a6682bd180ff
https://doi.org/10.1002/jccs.199600036
https://doi.org/10.1002/jccs.199600036
Autor:
Hwa-Sheng Cheng
Publikováno v:
Journal of the Chinese Chemical Society. 38:139-142
Mossbauer isomer shifts of 119Sn in a series of complexes K2Sn(OH)6-mFm observed at 78 K were −0.05, −0.05, −0.24, −0.27 and −0.40 mm s−1, respectively, for m=0, 2, 4, 5 and 6. These IS values were linearly related to both m and (the aver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f6ad766fc7ab91b66e4f1ffb3a2361d
https://doi.org/10.1002/jccs.199100022
https://doi.org/10.1002/jccs.199100022
Autor:
Hwa-Sheng Cheng, Chien-Hua Hsu
Publikováno v:
Journal of the Chinese Chemical Society. 31:101-106
Isomer shift of simple lines of the frozen mixture solutions of SnCl5H2O and K2SnF6 were linearly related to mole fraction and, therefore, to average ligand number, n. These spectra corresponded to Sn(H2O)6-nFn(- n)+. Assuming that quadrupole splitti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4ae1d8ad10f0009ec86e318cfc39447
https://doi.org/10.1002/jccs.198400014
https://doi.org/10.1002/jccs.198400014
Autor:
C. M. Hsu, Hwa-Sheng Cheng
Publikováno v:
Journal of the Chinese Chemical Society. 31:217-220
Mossbauer parameters of frozen salt solutions could be correlated with apparent degree of dissociation, γ. KSnCl3 and KSnBr3 were dissolved in 0.5 M H2SO4, whereas NH4 SnCl3 was dissolved in 0.5 M HClO4. Mossbauer studies were made at different conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26b7abc57bb07ee78a80e13590d7fa98
https://doi.org/10.1002/jccs.198400030
https://doi.org/10.1002/jccs.198400030
Publikováno v:
Journal of the Chinese Chemical Society. 31:107-115
Stability constants of fluorostannate(II) complexes were determined Mossbauer spectroscopically by rapid freezing technique. The observed isomer shift values suggested that these complexes were hydrogen bonded in perchloric acid solutions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7236cc455539260d154e3f004cd3489
https://doi.org/10.1002/jccs.198400015
https://doi.org/10.1002/jccs.198400015
Publikováno v:
Journal of the Chinese Chemical Society. 31:117-123
Mossbauer parameters of frozen aqueous solutions of Sn(ClO4)2 in 0.5 M HClO4 did not change with the concentration of NaClO4, so that it was used to keep the ionic strength at the desired level. When NaCl was added into Sn(ClO4)2 solutions, isomer sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffceb3899fa0efa6b4becbe0323d8841
https://doi.org/10.1002/jccs.198400016
https://doi.org/10.1002/jccs.198400016
Autor:
Chien-Min Hsu, Hwa-Sheng Cheng
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 35:2343-2350
Mossbauer spectra were observed for 119Sn(IV) in AG 1 anion exchange resin sorbed from hydrochloric and hydrobromic acid solutions of various concentrations. The isomer shift values observed in resins sorbed from 1 and 2 or 3 N HBr were, respectively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ce5c620d175645d716167c227194c76
https://doi.org/10.1016/0022-1902(73)80299-4
https://doi.org/10.1016/0022-1902(73)80299-4
Publikováno v:
Journal of the Chinese Chemical Society. 10:92-100
The contents of Br and I in commercial sodium glutamate and cassava flour were determined by neutron activation analsis at the Tsing Hua Reactor. The conventional carbon tetrachloride extraction method was employed for the analysis of these elements.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d90c9ba9d45552a0ad32ce399da768de
https://doi.org/10.1002/jccs.196300012
https://doi.org/10.1002/jccs.196300012
Autor:
Hiroshi Hamaguchi, Hwa-Sheng Cheng
Publikováno v:
Journal of the Chinese Chemical Society. 10:200-209
The sorption of radiocesium (Cs-134) by seven different samples of soil has been studied over a wide pH range (0–14). In general, the sorption is excellent except in the low pH region. The presence of 0.01 N Na +, Mg++, Ca++, Sr++, Ba++ and Al+++ d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e8ee4a5f83e3270a08472cf67122c7c
https://doi.org/10.1002/jccs.196300023
https://doi.org/10.1002/jccs.196300023
Autor:
Hwa‐Sheng Cheng, Chiung‐Huei Ke
Publikováno v:
Journal of the Chinese Chemical Society. 12:39-50
Trace impurities in aluminum were determined. Manganese, nickel, copper, cobalt and iron were analyzed by the metod of activation analysis at the THOR, while sodium and potassium were determined by flame photometry. The results were: Mn 0.00066%, Ni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2139ac00af847cd565e88f2d1b6d4fcb
https://doi.org/10.1002/jccs.196500004
https://doi.org/10.1002/jccs.196500004