[Determination of the sodium, potassium, calcium and magnesium content in food].
D002118:Calcium / Q000032:analysis*; D005504:Food Analysis / Q000379:methods*; D008274:Magnesium / Q000032:analysis*; D010783:Photometry; D011188:Potassium / Q000032:analysis*; D012964:Sodium / Q000032:analysis*
D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium
Opredelenie soderzhaniia natriia, kaliia, kal'tsiia i magniia v pishche