This paper compares two recent developments. Vertical-torch dual-view plasma observation has demonstrated benefits such as reduced interferences and higher matrix compatibility. However, its design suffers from issues of contamination plus higher requirements for maintenance, adding complexity and cost that can limit its usefulness. By contrast, newer dual side-on interface (DSOI) technology — as seen in the SPECTROGREEN ICP-OES analyzer — puts the challenge of plasma viewing in a whole new light. It can provide sensitivity, freedom from interference, and matrix compatibility while avoiding the earlier design’s drawbacks. This marks a revolutionary improvement. DSOI enables radial-view-based analyzers to deliver previously unachievable levels of performance and ease in a wide variety of applications.

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