Global Visible Spectrophotometers Market By Type (UV Visible Spectrophotometers, NIR Visible Spectrophotometers, and FL Visible Spectrophotometers), By Application (Food Industry, Quality Control, Environmental Analyses, Molecular & Cellular Biology, and Proteomics), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028