Sarstedt Inc, Newton, NC, has expanded its line of Multiply-µStrip polymerase chain reaction (PCR) tubes to include a white option for quantitative PCR. The reflective white wells maximize fluorescent signal intensity, minimize crosstalk, and enable volume reduction of expensive reagents without compromising sensitivity or stability. The thin-walled strips of eight 0.2 ml white PCR tubes are compatible with most popular thermocycler heating blocks and eight-channel pipettes. High-purity tube strips are batch certified by an independent laboratory to be free of DNase, human and bacterial DNA, PCR inhibitors, and RNase. Flat, optically transparent lid chains are available separately. For more information, visit Sarstedt.