Hyperspectral imaging as an emerging tool to analyze microplastics: A systematic review and recommendations for future development

Microplastics and Nanoplastics

Table 3 Technical specifications of benchtop HSI instrumentation used to analyze MP

Instrument (manufacturer)	Wavelength range (nm)	Spatial resolution (μm)	Spectral resolution (nm)	# polymers identified	Reference
Hyspex SWIR 320 hyperspectral camera (Norsk Elektro Optikk)	968–2498	280	6^a	11	[54]
Hyspex SWIR 320 hyperspectral camera (Norsk Elektro Optikk)	968–2498	280	6^a	13	[56]
SISU Chema XL (SISU Chema)	1000–2500	100	6.3	4	[59]
SISU Chema XL (SISU Chema)	1000–2500	100	5.9^a	3	[58]
Umbio Inspector (SISU Chema)	1000–2500	300	5	12	[55, 57]
V-NIR-A (Headwall Photonics)	400–1000	NR	2^b	1	[60]
V-NIR (Headwall Photonics)	900–1700	NR	3^b	5	[61]
G4–428 Hyperspec NIR R (Headwall Photonics)	900–1700	NR	3^b	3	[64]
Pika NIR-640 (Resonon Inc.)	900–1700	14.8	2.5	11	[65]
Malvern InGaAs camera (Malvern Panalytical)	960–1662	300, 1000	5.9^a	12	[55]
Videometer instrument (Videometer AS)	375–970	60	31.3^a	12	[55]
Dark field CytoViva hyperspectral microscope (Cytoviva)	400–1000	0.128^b	2	1	[63]
NIR Specim Imspector spectrometer mounted in front of an InGaAs Sensor Unlimited camera	350–2000	25	10	9	[62]

^aCalculated from spectral range and sampled wavelengths, ^b Details from manufacturer, NR not reported