1. Reductant from an extraneous source is introduced.

2. An oxidant, ammonium persulfate(APS) and a reductant, sodium metabisulfite(SMBS) constitute the initiator.

3. A new suitable mixture reductant of ammonium ferrous sulfate and fruit sugar was used for the determination of phosphorus by the molybdenum blue spectrophotometry.

4. A kind of reductant compound in solid state has proved itself effective.

5. The interference of reductant is eliminated by indirect iodimetry in the weak acidic medium and the content of potassium iodate is determined by direct iodimetry under acidic condition.

6. Therefore, the deposit using sodium hypophosphite as reductant was more suitable for the industries which had a relatively low requirement on conductance.

7. The results indicate that taking coal as reductant the ferriferous oxides can be reduced in solid phase, but the boron remains oxidic.

8. The results show that temperature, basicity, oxidant, reductant, and food additives have no or less effects on stability of the Setaria Italica yellow pigment.

9. Said anti-rheumatoid and antirheumatic drug also contains reductant and medicinal carrier, and has the advantages of small dosage, high therapeutic effect, and no side-effect.

10. A multi-metal alloy catalyst for hydrogenation of acetonitrile to ethylamine was prepared using hydrazine hydrate and potassium borohydride as the co- reductant .

11. This paper introduces a method of producing metallization pellet with laterite nickel ore as raw material and coal as a reductant in car bottom continuous furnace.

12. The corrosion resistance time increases firstly, and then decreases with the increment of reductant content.

13. It introduces the production situation and problems which coke is partly replaced by semicoke coal as reductant in ferroalloy production.

14. The selenium source is mixture system comprising selenide and reductant or metal selenium powder.

15. A method of continuously producing reduced compounds, which comprises continuously feeding our oxidised compound into a reaction chamber and contracting the oxidised compound with a reductant gas.

16. The acid leaching of manganese minerals with scrap iron a reductant a leaching of 97.

17. Before entering the catalyst chamber the oronia, or o ther reductant (such as urea ), is injected and mixed with the gases.

17.

18. Saturated cyclic steroid and terpenoid compound is the better reductant.

19. A kind of chromium gel system of retarded crosslinking made of partially hydrolyzed polyacrylamide(HPAM), sodium bichromate and organic reductant sulfocarbamide was investigated.

20. Hydrogen sulphide bearing gas or water is postulated to be an important reductant in several areas.

21. Selective leaching of nickel, cobalt and copper from cobalt crusts was attained by using ammonium carbonate solution and sulfur dioxide gas as a reductant.