Dikma Technologies Inc. products

Guard Column / Transfer Lines (Intermediate Polarity Deactivated): Use in a wide variety of applications. Allow most common solvents.

100% Dimethyl polysiloxane. General purpose column of non-polar phase. Long lifetime. Temperature range: -60 ºC to 350 ºC. Bonded and cross-linked phase, solvent rinsable. DM-1MS is a low bleed column, use for MSDs. Similar to DB-1, SPB-1, HP-1, etc. Equivalent to USP G1, G2, G38 phases.

5% diphenyl / 95% dimethyl polysiloxane, general purpose column with low polarity phase. DM-5 column has a slightly higher polarity compared to DM-1, resulting in a better selectivity for aromatic compounds. DM-5 column exhibits excellent reproducibility, high column efficiency, and low bleed. DM-5MS column exhibits ultra-low bleed with excellent inertness for active compounds and improves detection performance for MSDs, ECDs and NPDs.

DM-5MS / LB (low bleed) column is coated with a 5% diphenyl / 95% phenyl arylene dimethyl polysiloxane phase, which can inhibit the formation of ring-shaped fragments of siloxane skeleton, thereby reducing column bleed and increasing the thermal stabilty. The stationary phase has better stability; and will not exhibit oxidative degradation when there is trace oxygen in the carrier gas.

DM-1HT 100% Dimethyl polysiloxane. DM-5HT 5% diphenyl / 95% dimethyl polysiloxane.

DM-35 35% diphenyl / 65% dimethyl polysiloxane. DM-35MS 35% diphenyl / 65% dimethyl arylene polysiloxane.

14% cyanopropylphenyl / 86% dimethyl polysiloxane, general purpose column of mid-polarity phase.  DM-1701 is one of the most popular stationary phases. The mix of cyano and phenyl functional groups increases polarity and offers a different elution order compared to DM-1 or DM-5 column. DM-1701 column exhibits low bleed, high inertness and thermal stability because the polymer is characterized, and can be used for ECDs, NPDs and MSDs.

DM-17 50% diphenyl / 50% dimethyl polysiloxane. DM-17MS 50% diphenyl / 50% dimethyl arylene polysiloxane.