TOCSY 90° 90° △ Spinlock(x)|△ MLEV-17 Spin lock y-/ Z Product Operator Ix cos Q21t1 1z cos S21t1 I,z cos Q21t1 2xcosΩ2t1 Positive and absorptive diagonal cross peaks for Z-filtered anisotropic TocsYTOCSY Positive and absorptive diagonal & cross peaks for Z-filtered anisotropic TOCSY MLEV-17 Spin Lock Product Operator: