Plumb - solutie standard, Pb(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Pb Certipur®, Merck
Solutie standard de crom, Cr(NO3)3 in HNO3 0.5 mol/l, trasabila NIST, 1000 mg/l Cr Certipur®, Merck
Solutie standard de nichel Ni(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Ni Certipur®, Merck
Solutie standard de cadmiu, Cd(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Cd Certipur®, Merck
Solutie standard de fier...
Plumb - solutie standard, Pb(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Pb Certipur®, Merck
Solutie standard de crom, Cr(NO3)3 in HNO3 0.5 mol/l, trasabila NIST, 1000 mg/l Cr Certipur®, Merck
Solutie standard de nichel Ni(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Ni Certipur®, Merck
Solutie standard de cadmiu, Cd(NO3)2 in HNO3 0.5 mol/l, trasabila NIST; 1000 mg/l Cd Certipur®, Merck
Solutie standard de fier Fe(NO3)3 in HNO3 0.5 mol/l, trasabila NIST, 1000 mg/l Fe Certipur® - cod 1197810100 Merck
Iodat de potasiu EMSURE® ACS,ISO,Reag.Ph Eur;continutiodometric)99.7 - 100.4 %, Merck