$503.92

Multi-Ion Standard 100 ppm each Ca²?, Mg²?, Na?, NH??, Li?, K? for Ion Chromatography - MSTD200-4

$124.31

Inorganic Carbon Standard, 100 ppm C - R1845100-500C

$42.29

Iron Standard, 200 ppm Fe - 4191-4

$62.36

Magnesium Standard, 100 ppm Mg for Ion Chromatography - 4495-100

$125.83

Iodine Color Std. 100mg / 100mL DIN 6162 Iodine Number - R3963100-120C

$131.01

Iodine Color Std. 400mg / 100mL DIN 6162 Iodine Number - R3963400-120C

$58.77

Sodium Standard, 100 ppm Na for Ion Chromatography - R7597100-100A

$148.32

Anions Multi-Standard Solution, 250 ppm F, 500 ppm Cl, 250 ppm NO?-N, 500 ppm PO?, 500 ppm SO? - 753-16