Follow-up buying in the morning trades, backed by steady global markets saw the the Sensex open with a positive gap of 52 points 14,130. The index touched a high of 14,189 in early trades, but soon slipped into the negative zone owing to weakness in Reliance and technology stocks.A fresh round of selling in late noon trades saw the index slide to a low of 13,913 - down 276 points from the day's high. The Sensex finally ended with a loss of 144 points at 13,934.