  We study the factorisation properties of one-loop scattering amplitudes in
the triple collinear limit and extract the universal splitting amplitudes for
processes initiated by a gluon. The splitting amplitudes are derived from the
analytic Higgs plus four partons amplitudes. We present compact results for
primitive helicity splitting amplitudes making use of super-symmetric
decompositions. The universality of the collinear factorisation is checked
numerically against the full colour six parton squared matrix elements.
