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Resistance of nickel-based alloys the direct spectrophotometric determination of germanium

Comparison of germanium and silicon absorption curve similar to, and in all the visible absorption of silicon germanium much stronger than those shown in Figure 1. Determination of germanium in silicon can be seen on the serious interference. . 22, acid flesh to silicon from hydrogen test showed that the silicon platform O. 30 ~ 1.37, the Li River with 5 (about O.2m1) hydrofluoric acid attack silicon,[link widoczny dla zalogowanych], the residual silicon content in the 0. O05, the set of the rinse has little impact. A l Farm (Ferret a C,[link widoczny dla zalogowanych], g Figure 2 the calibration curve: 1. Si 2. Wrong 3. Ge (HF treatment) fF section l62 pages turn and a constant, this selection of 20rain. 2.5 network platform objects qualitative composition and use of equimolar spike continuous variation method and slope ratio method I set the strong complex composition, two methods are consistent,[link widoczny dla zalogowanych], that is, Od (I): T 【4-MOP) P = 1:1. Complex unstable in sunlight,[link widoczny dla zalogowanych], but the glow in the dark hours of placing the same degree. 2.6 The impact of coexistence Apartments child to take, cadmium ions, each with eight different amounts of interfering ions of color after the test methods for the determination of the absorbance change I ~ <10 to not interfere with the results show that the permitted amount of the following ions (in g total): Zn ~ (6oo), Ar (Io3), Jue strong that (5O). K, Mo ¨ (2ooo), Ca shake 【40). Ba2 (250O), P (8O), Ni lying (20), P0: a (15o), sio; one (80). And m. , C, Cu tadpole shaking Co, Fe-pin interference is more serious, we use the mixed masking agent, the leaf Fe content from lOflg allowed to 8g, Co 6g to long and cadmium by the same amount of CuI, Q even, M is not interfere with the determination to better improve the selectivity of the method. 2.7 Working curve drawn in 25ml colorimetric tube, each with eight different amounts of cadmium standard solution, according to test methods of other procedures. The results show that when the cd (I) in the O-4. O, ag / '2 fml time. Law is obeyed, itching Seoul absorptivity of 2.95 × 10. (Continued from page 160) 2.4 Yexian color color stability after the l0, 3o, 40,50,60 min when measured absorbance values corresponding to 0.3970.397,0.395 from A, 0.391,0.390, color solution is stable at ~ Omin. Said the kind of sample analysis steps of 2.5 0.1, 0.2g in 200ml of a PTFE beaker, add 20m1 nitric acid, heating dissolved, add 5 drops of hydrofluoric acid, eight, continue to evaporate to catch 1mI, with a small amount of water Rinse Beibi, then a small fire evaporated (not burning). Plus eight 20ml nitric acid, heating dissolved salts, boiling, cooling, dilute with water to 100rot flask. Pipette J. Oml 100ml flask were placed two copies of the test solution, the following test methods were the same, from Figure 2, curve 3 Richard blocking content. 2.5.1 Recovery test and sample analysis method according to the steps by recycling rinse test results obtained in Table l. No. 89-608 sample was measured 1.13, I. 1t; 89-609 sample number is 1.06.1.08 Front, with the weight of cinchonine method called comparative analysis, two samples were obtained rinse 1.15,1.09. . r-1 delivery (3 samples and a 2.8 rate, determined by this Law, the East and the deep underground layer preserves permanent paralysis in the amount of cadmium, and atomic absorption control, the results are basically the same, feeding recovery test, recovery rate of 97 ~ l04. part of the results in Table 2. Table 2 the results of the control and recovery
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