Te d,n

Iodine-123 has been separated carrier-free from bombarded tellurium targets by the following procedure (164, 170). The target (Including the aluminum 

A method for the recovery of I with carrier has employed the dissolution of the tellurium target (plus Iodide carrier) in concentrated sulfuric acid, followed by distillation of the Ig formed Into sodium hydroxide solution (332). The same procedure was used for the separation of the isotope from antimony targets. 

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Short-lived antimony Isotopes, such as 19-mlnute Sb12 , 10.3-mlnute Sb12 , and 1.9-minute Sb1 2 produced In Te(d,a) and Te(n,p) reactions or In the fission process, can be separated rapidly as stibine (1,87,88). More recently, 10-second separations of the antimony activities In fission products have been made (l64). For this method Sb+ carrier with the fission products and 300 sulfuric acid was dropped onto metallic zinc held In a distillation flask at 100° C. 

In the absence of replicate observations, replic te residuals were used. The observational variance was estimated as the smallest residual mean square. S(d)/ n — p). obtained when the weighted observations of og R,/pHPu) were fitted with detailed polynomial functions of the interfacial temperature and the three partial pressures. 

Schroder LE, Lew D, Flanigan RC, Eisenberger MA, Seay TE, Hammond N, Needles BM, Crawford ED. Phase 11 evaluation of suramin in advanced renal cell carcinoma. A Southwest Oncology Group study. Urol Oncol 2001 6(4) 145-8. 

Alternative production routes for include proton- and deuteron-induced reactions in an enriched Te target in an accelerator, Te(p,n) I and Te(d,2n) I, respectively. 

Acidity b- si-ds-te, a- n(1620) (1) Measure of the free acid present. (2) In oils, acidity denotes the presence of acid-type constituents whose concentrations are usually defined in terms of the neutralization number, called acid number (Dainth J (2004) Dictionary of chemistry. Oxford University Press, UK Whitten KW, Davis RE, Davis E, Peck LM, Stanley GG (2003) General chemistry. Brookes/Cole, New York) G Sauregrad m, F taux d acidite, taux m, S grade de acidez, grade m, I acidita f. ... 

Recent applications of photon activation to the analysis of heavy elements include the determination of Te, Sr, and Pb. Campbell and Steele measured Te in the presence of U by Ge(Li) spectrometry of the activated Te isotope [ Te(y,n) Te] with a half-life of 17 d. The method is useful because it avoids the complications arising in n.a.a. caused by fission of the uranium giving rise to direct and spectral interferences from fission products. The measurement of "Sr induced by Sr(), n) and Sr(y,y ) reactions using 30 MeV Bremsstrahlung has been applied to the analysis of Sr in sea-water at the 8 p.p.m. level this involved a radiochemical separation of the 2—8 h Sr. The (y,n) reaction of Pb has been used for the determination of Pb in milk powder.Measurement of the Pb isotope (/ 52 h) after a non-specific sulphate precipitation of the Pb is sufficient to attain a limit of detection of 0.5 //g. The activity was measured with a NaI(TI) detector after "Sr, which was also produced, had decayed. 

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