The effects of heating and chemical treatment on the haem and non-haem iron content of heat-induced porcine blood curd

1994 ◽  
Vol 65 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Feng-Sheng Wang ◽  
Chin-Wen Lin
2016 ◽  
Vol 193 ◽  
pp. 97-101 ◽  
Author(s):  
Beulah Pretorius ◽  
Hettie C. Schönfeldt ◽  
Nicolette Hall
Keyword(s):  

2013 ◽  
Vol 789 ◽  
pp. 538-544 ◽  
Author(s):  
Sariman Sariman ◽  
Yuni Krisyuningsih Krisnandi ◽  
Budi Setiawan

Anatase TiO2 enrichment from Bangka ilmenite (FeTiO3) has been conducted. First, ilmenite was mechanically activated using a planetary ballmill to obtain sub-micron sized particle followd by magnetic separation. Chemical treatment, dissolution of iron using hydrochloric solution, was performed to obtain titania rich residue. EDX data shows that the iron content was reduced in the titania residue. Ammonium hydroxide (NH4OH) solution was added to the washed precipitate, before adding H2O2 solution (10%) that acted as a coordination agent to leach titanium from the the residue in the form of ammonium peroxo titanate solution. The peroxo titanate powder was obtained by evaporating the ammonium peroxo titanate solution. XRD data show that TiO2 anatase was formed after peroxo titanate powder was calcined at the temperature of 600°C. EDX data also shows that the obtained anatase TiO2 still has impurities, such as silicon (0.98%) and iron (2.75%). Its photocatalytic activity was studied on photodegradation of Congo Red and compared with the photocatalytic activity of commercial TiO2, Degussa P-25. The photoreactivity test on degradation of Congo Red solution with the as-prepared Anatase gave 20% degradation which is still inferior compared to the results given by Degussa P25 (92%). This indicates that the impurities in as-prepared Anatase may cover the titania surface hindering the contact between Congo Red as well as UV-light and the active titania species.


1999 ◽  
Vol 34 ◽  
pp. 51-69 ◽  
Author(s):  
Issa S. Isaac ◽  
John H. Dawson
Keyword(s):  

2001 ◽  
Vol 120 (5) ◽  
pp. A571-A571
Author(s):  
J SCHWARTZ ◽  
V FISHMAN ◽  
R THOMAS ◽  
J GAUGHN ◽  
K KOWDLEY ◽  
...  

Author(s):  
P.I. Loboda ◽  
Younes Razaz ◽  
S. Grishchenko

Purpose. To substantiate the efficiency of processing hematite raw materials at the Krivoy Rog Mining and Processing Plant of Oxidized Ores using the direct reduction technology itmk3®. Metodology. Analysis of the results of the itmk3® direct restoration technology developed by Kobe Steel Ltd., Japan and Hares Engineering GmbX, Austria, with a view to using it to process Krivbass hematite ores into granulated iron (so-called “nuggets”). Findings. The involvement in the production of hematite ores (oxidized quartzite) of Krivbass with high iron content, but with low magnetic properties for their processing into granular cast iron is grounded. Originality. The use of itmk3® direct reduction technology from Kobe Steel Ltd., Japan and Hares Engineering GmbH, Austria for the processing of Krivbass hematite ores into granular cast iron is justified for the first time. Practical value. The efficiency of the use of hematite ores (oxidized quartzite) has been substantiated, which can significantly reduce the costs in the mining cycle for the economical production of metallurgical products.


1961 ◽  
Vol 38 (4) ◽  
pp. 545-562 ◽  
Author(s):  
L. Kecskés ◽  
F. Mutschler ◽  
I. Glós ◽  
E. Thán ◽  
I. Farkas ◽  
...  

ABSTRACT 1. An indirect paperchromatographic method is described for separating urinary oestrogens; this consists of the following steps: acidic hydrolysis, extraction with ether, dissociation of phenol-fractions with partition between the solvents. Previous purification of phenol fraction with the aid of paperchromatography. The elution of oestrogen containing fractions is followed by acetylation. Oestrogen acetate is isolated by re-chromatography. The chromatogram was developed after hydrolysis of the oestrogens 'in situ' on the paper. The quantity of oestrogens was determined indirectly, by means of an iron-reaction, after the elution of the iron content of the oestrogen spot, which was developed by the Jellinek-reaction. 2. The method described above is satisfactory for determining urinary oestrogen, 17β-oestradiol and oestriol, but could include 16-epioestriol and other oestrogenic metabolites. 3. The sensitivity of the method is 1.3–1.6 μg/24 hours. 4. The quantitative and qualitative determination of urinary oestrogens with the above mentioned method was performed in 50 pregnant and 9 non pregnant women, and also in 2 patients with granulosa cell tumour.


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