Raychaudhuri, A and Roy, S K and Chakraburtty, A K (1992) The separation of W(V) from HCl-KSCN medium on polyurethane foam sorbents for its spectrophotometric determination in steels and silicates. Talanta, 39 (10). pp. 1377-1382. ISSN 0039-9140

Bhattacharya, Swagata and Roy, S K and Chakraburtty, A K (1992) Spectrophotometric determination of vanadium in glass and ceramics after extraction of the vanadium—salicylhydroxamic acid complex on polyurethane foam. Analytica Chimica Acta, 257 (1). pp. 123-128. ISSN 0003-2670

Roy, A and Roy, S K and Chakraburtty, A K (1991) Spectrophotometric determination of molybdenum in glass and enamels after extraction of molybdenum - thioglycollic acid complex on polyurethane foam. Glass Technolog, 32 (1). pp. 20-23. ISSN 0017-1050

Bhattacharya, S and Roy, S K and Chakraburtty, A K (1989) Spectrophotometric determination of titanium in glass and quartz, after extraction of titanium silicyllhydroxamic acid on polyurethane foam. CGCRI Bulletin, 36 (1-2). pp. 10-14. ISSN 0008-9397