  We present new results from a Chandra HETG observation of NGC 5548 and give a
comparison of absorption and emission features found in other Seyfert 1
galaxies using Chandra grating observations. Deep soft X-ray edges are seen in
Mkn 509 and NGC 3783, consistent with ASCA data. In NGC 5548 and NGC 4501 the
edges are weak but consistent with the low column densities. We show that the
detection of a narrow, probably non-disk, component of the iron line is very
common. However, just as importantly, it is not detected in some cases. We show
the effect of removing this narrow component from the ASCA Fe-K line profile in
NGC 4151, revealing the underlying true shape of the relativistic Fe-K line
component.
