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Septum Nut

      Septum nut provides consistent septum tightness, fewer bent needles, and easy leak detection. The nut contains a needle guide, ensuring that the needle consistently penetrates the septum in the same place, prolonging septum life. The guide also prevents the needle from striking the edge of the column or bending during insertion.

Septum Nuts for Agilent 5890/6850/6890/7890 GCs
      • Ensure a leak-tight injection port, increase septum lifetime, and decrease maintenance   requirements.
      • Needle guide allows easy penetration and prevents septum coring.
      • Manual injection septum nut allows use of 26-gauge needles for on-column injections.
      • Made of high-quality stainless steel.

Merlin Microseal™ Kit

      The Merlin Microseal™ Septum is a long-life replacement for the standard septum on the Capillary Inlet System or the Purged-Packed Inlet System of Agilent GC (not useable with the non-purged packed column inlet system). The Merlin Microseal is a patented dual-seal inlet assembly featuring an O-ring and “duckbill” seal. Because the syringe needle does not pierce any septum material, seal lifetime is typically greater than one year with normal GC use. Complete Kit includes the nut, two Microseal™ septa, and a PTFE liner.

      The Merlin Microseal™ system can be used manually with Agilent / HP 5700, 5830, 5840, 5880, 5890, 5890 Series II and 6890 gas chromatographs. However, for autosampler use it is compatible only with the Agilent 7673 / 7683.

      Microseal™ Septa has a lifetime of more than 2,000 injections depending on samples and operating condition. The Microseal™ Septum last longest when a syringe needle with a truncated cone shaped tip is used. It may also be used with the standard 0.63mm diameter (0.026", 23-gauge) needle recommended for use with the HP 7673 Autosampler for many years. A sharp pointed or beveled syringe needle should not be used as it will cut or pierce the duckbill seal.

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